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Document And Entity Information - shares	9 Months Ended
Document And Entity Information - shares	Dec. 29, 2012	Jan. 25, 2013
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 29, 2012
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Registration Name	RBC Bearings INC
Central Index Key	0001324948
Current Fiscal Year End Date	--03-30
Filer Category	Large Accelerated Filer
Common Stock Shares Outstanding		22,958,248

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 29, 2012	Mar. 31, 2012
ASSETS
Cash and cash equivalents	$ 111,955	$ 68,621
Short-term investments	1,210	0
Accounts receivable, net of allowance for doubtful accounts of $1,396 at December 29, 2012 and $1,816 at March 31, 2012	61,831	72,560
Inventory	172,625	158,805
Deferred income taxes	9,714	11,272
Prepaid expenses and other current assets	8,735	3,040
Total current assets	366,070	314,298
Property, plant and equipment, net	114,558	93,373
Goodwill	34,713	34,713
Intangible assets, net of accumulated amortization of $10,423 at December 29, 2012 and $9,285 at March 31, 2012	10,847	11,380
Other assets	6,496	5,754
Total assets	532,684	459,518
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	23,989	24,720
Accrued expenses and other current liabilities	17,914	18,103
Current portion of long-term debt	1,360	1,041
Total current liabilities	43,263	43,864
Deferred income taxes	7,747	6,851
Long-term debt	9,541	0
Other non-current liabilities	20,550	22,988
Total liabilities	81,101	73,703
Stockholders' equity:
Preferred stock, $.01 par value; authorized shares: 10,000,000 at December 29, 2012 and March 31, 2012; none issued and outstanding	0	0
Common stock, $.01 par value; authorized shares: 60,000,000 at December 29, 2012 and March 31, 2012; issued and outstanding shares: 23,243,028 at December 29, 2012 and 22,327,295 at March 31, 2012	232	223
Additional paid-in capital	230,519	205,333
Accumulated other comprehensive gain	56	1,069
Retained earnings	231,159	185,392
Treasury stock, at cost, 287,780 shares at December 29, 2012 and 202,271 shares at March 31, 2012	(10,383)	(6,202)
Total stockholders' equity	451,583	385,815
Total liabilities and stockholders' equity	$ 532,684	$ 459,518

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 29, 2012	Mar. 31, 2012
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,396	$ 1,816
Intangible assets, accumulated amortization	$ 10,423	$ 9,285
Preferred Stock
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized shares	10,000,000	10,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common Stock
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized shares	60,000,000	60,000,000
Common stock, issued shares	23,243,028	22,327,295
Common stock, outstanding shares	23,243,028	22,327,295
Treasury Stock
Treasury stock, shares	287,780	202,271

Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Consolidated Statements Of Operations [Abstract]
Net sales	$ 96,336	$ 95,104	$ 300,045	$ 286,188
Cost of sales	60,060	61,478	187,796	186,782
Gross margin	36,276	33,626	112,249	99,406
Operating expenses:
Selling, general and administrative	16,567	15,009	48,436	44,780
Other, net	550	413	1,465	1,042
Total operating expenses	17,117	15,422	49,901	45,822
Operating income	19,159	18,204	62,348	53,584
Interest expense, net	281	249	679	935
Other non-operating (income) expense	229	36	(2,961)	557
Income before income taxes	18,649	17,919	64,630	52,092
Provision for income taxes	6,540	5,752	18,863	17,621
Net income	$ 12,109	$ 12,167	$ 45,767	$ 34,471
Net income per common share:
Basic (in dollars per share)	$ 0.54	$ 0.56	$ 2.05	$ 1.58
Diluted (in dollars per share)	$ 0.53	$ 0.54	$ 2.01	$ 1.54
Weighted average common shares:
Basic (in shares)	22,538,502	21,894,128	22,286,974	21,860,593
Diluted (in shares)	22,862,347	22,449,793	22,724,286	22,351,940

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Statement of Income and Comprehensive Income [Abstract]
Net income	$ 12,109	$ 12,167	$ 45,767	$ 34,471
Net prior service pension cost and actuarial losses, net of taxes	(194)	(141)	(583)	(421)
Change in fair value of derivatives, net of taxes	0	(47)	0	122
Change in unrealized loss on investments, net of taxes	26	0	21	(68)
Foreign currency translation adjustments	1,498	(1,951)	(451)	(2,092)
Total comprehensive income	$ 13,439	$ 10,028	$ 44,754	$ 32,012

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

- Definition

Net of tax amount of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

- Definition

Net of tax amount of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 45,767	$ 34,471
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	9,947	9,530
Excess tax benefits from stock-based compensation	(5,567)	(791)
Deferred income taxes	2,455	(1,709)
Amortization of intangible assets	1,127	1,112
Amortization of deferred financing costs	244	244
Stock-based compensation	4,013	3,121
Gain on disposition or sale of assets	(52)	(62)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	10,503	(2,846)
Inventory	(13,968)	(17,781)
Prepaid expenses and other current assets	(5,689)	297
Other non-current assets	(1,612)	(1,345)
Accounts payable	(685)	1,341
Accrued expenses and other current liabilities	5,443	5,751
Other non-current liabilities	(2,702)	637
Net cash provided by operating activities	49,224	31,970
Cash flows from investing activities:
Purchase of property, plant and equipment	(30,804)	(11,299)
Purchase of short-term investments	(1,210)	0
Proceeds from sale or maturities of short-term investments	0	3,883
Proceeds from sale of assets	165	162
Net cash used in investing activities	(31,849)	(7,254)
Cash flows from financing activities:
Decrease in revolving credit facility	0	(30,000)
Proceeds from term loan	9,857	0
Exercise of stock options	15,617	1,673
Excess tax benefits from stock-based compensation	5,567	791
Repurchase of common stock	(4,180)	(569)
Other, net	(273)	(238)
Net cash provided by (used in) financing activities	26,588	(28,343)
Effect of exchange rate changes on cash	(629)	(637)
Cash and cash equivalents:
Increase (decrease) during the period	43,334	(4,264)
Cash, at beginning of period	68,621	63,975
Cash, at end of period	$ 111,955	$ 59,711

Net Income Per Common Share

9 Months Ended

Dec. 29, 2012

Earnings Per Share [Abstract]

Net Income Per Common Share

1. Net Income Per Common Share

Basic net income per common share is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding.

Diluted net income per common share is computed by dividing net income by the sum of the weighted-average number of common shares and dilutive common share equivalents then outstanding using the treasury stock method. Common share equivalents consist of the incremental common shares issuable upon the exercise of stock options.

The table below reflects the calculation of weighted-average shares outstanding for each period presented as well as the computation of basic and diluted net income per common share:

	Three Months Ended				Nine Months Ended
	December 29, 2012		December 31, 2011		December 29, 2012		December 31, 2011

Net income	$	12,109	$	12,167	$	45,767	$	34,471

Denominator for basic net income per common share—weighted-average shares outstanding		22,538,502		21,894,128		22,286,974		21,860,593
Effect of dilution due to employee stock options		323,845		555,665		437,312		491,347
Denominator for diluted net income per common share — weighted-average shares outstanding		22,862,347		22,449,793		22,724,286		22,351,940

Basic net income per common share	$	0.54	$	0.56	$	2.05	$	1.58

Diluted net income per common share	$	0.53	$	0.54	$	2.01	$	1.54

At December 29, 2012, 209,500 employee stock options and 300 restricted shares have been excluded from the calculation of diluted earnings per share. At December 31, 2011, 15,100 employee stock options and no restricted shares have been excluded from the calculation of diluted earnings per share. The inclusion of these employee stock options and unvested restricted stock shares would be anti-dilutive.

Cash And Cash Equivalents

9 Months Ended

Dec. 29, 2012

Cash and Cash Equivalents [Abstract]

Cash and cash equivalents

2. Cash and Cash Equivalents

The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.

Short-term investments are measured at fair value by using quoted prices in active markets and are classified as Level 1 of the valuation hierarchy.

- Definition

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section H
-Subsection 3

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 1
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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+ Details

Inventory

9 Months Ended

Dec. 29, 2012

Inventory, Net [Abstract]

Inventory

3. Inventory

Inventories are stated at the lower of cost or market, using the first-in, first-out method, and are summarized below:

	December 29, 2012		March 31, 2012
Raw materials	$	17,606	$	15,056
Work in process		39,947		39,480
Finished goods		115,072		104,269
	$	172,625	$	158,805

Intangible Assets

9 Months Ended

Dec. 29, 2012

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets

4. Intangible Assets

		December 29, 2012				March 31, 2012
	Weighted Average Useful Lives	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Product approvals	15	$	6,199	$	2,548	$	6,181	$	2,232
Customer relationships and lists	11		5,559		3,330		5,556		3,007
Trade names	15		1,387		1,047		1,386		972
Distributor agreements	5		722		722		722		722
Patents and trademarks	15		5,986		1,734		5,404		1,359
Domain names	10		437		200		437		167
Other	4		980		842		979		826
Total		$	21,270	$	10,423	$	20,665	$	9,285

Amortization expense for definite-lived intangible assets for the three and nine month periods ended December 29, 2012 was $363 and $1,127, respectively. Amortization expense for definite-lived intangible assets for the three and nine month periods ended December 31, 2011 was $374 and $1,112, respectively. Estimated amortization expense for the remaining three months of fiscal 2013, the five succeeding fiscal years and thereafter is as follows:

2013	$	399
2014		1,470
2015		1,470
2016		1,461
2017		1,440
2018		1,440
2019 and thereafter		3,167

Debt

9 Months Ended

Dec. 29, 2012

Debt [Abstract]

Debt

5. Debt

The balances payable under all borrowing facilities are as follows:

	December 29, 2012		March 31, 2012
Notes payable	$	10,901	$	1,041
Total debt		10,901		1,041
Less: current portion		1,360		1,041
Long-term debt	$	9,541	$	—

On October 1, 2012, Schaublin purchased the land and building, which it occupied and had been leasing, for 14,067 CHF (approximately $14,910). Schaublin obtained a 20 year fixed rate mortgage of 9,300 CHF (approximately $9,857) at an interest rate of 2.9%. The balance of the purchase price of 4,767 CHF (approximately $5,053) was paid from cash on hand. The balance on this mortgage as of December 29, 2012 was 9,184 CHF, or $10,050.

On November 30, 2010, the Company entered into a new credit agreement (the “JP Morgan Credit Agreement”) and related security and guaranty agreements with certain banks, J.P. Morgan Chase Bank, N.A., as Administrative Agent, and J.P. Morgan Chase Bank, N.A. and KeyBank National Association as Co-Lead Arrangers and Joint Lead Book Runners. The JP Morgan Credit Agreement provides Roller Bearing Company of America, Inc. (“RBCA”), as borrower, with a $150,000 five-year senior secured revolving credit facility which can be increased by up to $100,000, in increments of $25,000, under certain circumstances and subject to certain conditions (including the receipt from one or more lenders of the additional commitment).

Amounts outstanding under the JP Morgan Credit Agreement generally bear interest at the prime rate or LIBOR plus a specified margin, depending on the type of borrowing being made. The applicable margin is based upon the Company’s consolidated ratio of net debt to adjusted EBITDA, measured at the end of each quarter. As of December 29, 2012, the Company’s margin is 0.5% for prime rate loans and 1.5% for LIBOR rate loans.

The JP Morgan Credit Agreement requires the Company to comply with various covenants, including among other things, financial covenants to maintain the following: (1) a ratio of consolidated net debt to adjusted EBITDA, not to exceed 3.25 to 1; and (2) a consolidated fixed charge coverage ratio not to exceed 1.5 to 1. The credit agreement allows the Company to, among other things, make distributions to shareholders, repurchase its stock, incur other debt or liens, or acquire or dispose of assets provided that the Company complies with certain requirements and limitations of the agreement. As of December 29, 2012, the Company was in compliance with all such covenants.

Approximately $5,545 of the JP Morgan Credit Agreement is being utilized to provide letters of credit to secure RBCA’s obligations relating to certain insurance programs. As of December 29, 2012, RBCA had the ability to borrow up to an additional $144,455 under the JP Morgan Credit Agreement.

On October 27, 2008, Schaublin entered into a new bank credit facility with Credit Suisse (the “Swiss Credit Facility”) which replaced the prior bank credit facility of December 8, 2003 and its amendment of November 8, 2004. This facility provides for up to 4,000 CHF, or $4,377, of revolving credit loans and letters of credit. Borrowings under the Swiss Credit Facility bear interest at Credit Suisse’s prevailing prime bank rate. As of December 29, 2012, there were no borrowings under the Swiss Credit Facility.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Income Taxes

9 Months Ended

Dec. 29, 2012

Income Taxes [Abstract]

Income Taxes

6. Income Taxes

The Company files income tax returns in the U.S. federal jurisdiction, and various states and foreign jurisdictions. With few exceptions, the Company is no longer subject to state or foreign income tax examinations by tax authorities for years ending before March 30, 2002. The Company is no longer subject to U.S. federal corporate income tax examination by the Internal Revenue Service for fiscal years ending before March 28, 2009. A U.S. federal corporate income tax examination by the Internal Revenue Service for the fiscal years ended March 31, 2007 and March 29, 2008 was deemed effectively settled in the Company’s second quarter of the fiscal year ended March 30, 2013 and the statute of limitations expired for the Company’s fiscal year ended March 28, 2009 in the Company’s third quarter of the fiscal year ended March 30, 2013. The Company is presently under an examination by the Internal Revenue Service for its U.S. federal corporate income tax return for the fiscal year ended April 2, 2011.

The effective income tax rates for the three and nine month periods ended December 29, 2012 and December 31, 2011, were 35.1% and 32.1% and 29.2% and 33.8%, respectively. In addition to discrete items, the effective income tax rates for these periods are different from the U.S. statutory rates due to a special manufacturing deduction in the U.S. and foreign income taxed at lower rates which decrease the rate, and state income taxes and an officers’ compensation adjustment which increase the rate.

The effective income tax rate for the three month period ended December 29, 2012 of 35.1% includes discrete items of $105 which are substantially comprised of the reversal of unrecognized tax benefits associated with the expiration of statutes of limitations along with the recognition of interest on unrecognized tax positions. The effective income tax rate without these discrete items would have been 35.6%. The effective tax rate, without discrete items, for the three month period ended December 31, 2011 would have been 34.5%. The Company believes it is reasonably possible that some of its unrecognized tax positions may be effectively settled within the next twelve months due to the closing of audits and the statute of limitations expiring in varying jurisdictions. The decrease, pertaining primarily to credits and state tax, is estimated to be between $1,200 and $1,500.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Reportable Segments

9 Months Ended

Dec. 29, 2012

Segment Information [Abstract]

Reportable Segments

7. Reportable Segments

The Company operates through operating segments for which separate financial information is available, and for which operating results are evaluated regularly by the Company's chief operating decision maker in determining resource allocation and assessing performance. Those operating segments with similar economic characteristics and that meet all other required criteria, including nature of the products and production processes, distribution patterns and classes of customers, are aggregated as reportable segments. Certain other operating segments that do not exhibit the common attributes mentioned above and do not meet the quantitative thresholds for separate disclosure are combined and disclosed as "Other".

The Company has four reportable business segments, Plain Bearings, Roller Bearings, Ball Bearings and Other, which are described below. Within the Plain Bearings, Roller Bearings and Ball Bearings reportable segments, the Company has not aggregated any operating segments. Within the Other reportable segment, the Company has aggregated operating segments because they do not meet the quantitative threshold for separate disclosure.

Plain Bearings. Plain bearings are produced with either self-lubricating or metal-to-metal designs and consists of several sub-classes, including rod end bearings, spherical plain bearings and journal bearings. Unlike ball bearings, which are used in high-speed rotational applications, plain bearings are primarily used to rectify inevitable misalignments in various mechanical components.

Roller Bearings. Roller bearings are anti-friction bearings that use rollers instead of balls. The Company manufactures four basic types of roller bearings: heavy duty needle roller bearings with inner rings, tapered roller bearings, track rollers and aircraft roller bearings.

Ball Bearings. The Company manufactures four basic types of ball bearings: high precision aerospace, airframe control, thin section and commercial ball bearings which are used in high-speed rotational applications.

Other. Other consists of three operating locations that do not fall into the above segmented categories. The Company’s precision machine tool collets provide effective part holding and accurate part location during machining operations. Additionally, the Company provides machining for integrated bearing assemblies and aircraft components for the commercial and defense aerospace markets and tight-tolerance, precision mechanical components for use in the motion control industry.

Segment performance is evaluated based on segment net sales and operating income. Items not allocated to segment operating income include corporate administrative expenses and certain other amounts.

	Three Months Ended						Nine Months Ended
	December 29, 2012			December 31, 2011			December 29, 2012			December 31, 2011
Net External Sales
Plain	$	51,497		$	46,816		$	160,166		$	143,522
Roller		26,115			30,632			87,564			88,711
Ball		10,779			9,962			30,146			30,931
Other		7,945			7,694			22,169			23,024
	$	96,336		$	95,104		$	300,045		$	286,188
Gross Margin
Plain	$	20,220		$	16,772		$	61,868		$	51,800
Roller		10,587			11,238			34,269			31,287
Ball		1,848			2,365			6,350			7,080
Other		3,621			3,251			9,762			9,239
	$	36,276		$	33,626		$	112,249		$	99,406
Selling, General & Administrative Expenses
Plain	$	3,865		$	3,621		$	11,252		$	10,716
Roller		1,682			1,596			5,098			4,731
Ball		729			581			2,279			2,176
Other		968			981			2,754			3,018
Corporate		9,323			8,230			27,053			24,139
	$	16,567		$	15,009		$	48,436		$	44,780
Operating Income
Plain	$	16,160		$	13,028		$	49,946		$	40,724
Roller		8,826			10,292			28,889			28,339
Ball		1,083			1,027			3,965			3,000
Other		2,592			2,231			6,968			6,111
Corporate		(9,502	)		(8,374	)		(27,420	)		(24,590	)
	$	19,159		$	18,204		$	62,348		$	53,584
Geographic External Sales
Domestic	$	82,227		$	82,148		$	258,082		$	244,424
Foreign		14,109			12,956			41,963			41,764
	$	96,336		$	95,104		$	300,045		$	286,188
Intersegment Sales
Plain	$	757		$	650		$	2,278		$	1,886
Roller		4,372			4,130			13,677			12,210
Ball		671			451			1,844			1,188
Other		5,760			5,857			18,340			17,070
	$	11,560		$	11,088		$	36,139		$	32,354

All intersegment sales are eliminated in consolidation.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Net Income Per Common Share (Tables)

9 Months Ended

Dec. 29, 2012

Earnings Per Share [Abstract]

Schedule Of Calculation Of Weighted-Average Shares Outstanding

The table below reflects the calculation of weighted-average shares outstanding for each period presented as well as the computation of basic and diluted net income per common share:

	Three Months Ended				Nine Months Ended
	December 29, 2012		December 31, 2011		December 29, 2012		December 31, 2011

Net income	$	12,109	$	12,167	$	45,767	$	34,471

Denominator for basic net income per common share—weighted-average shares outstanding		22,538,502		21,894,128		22,286,974		21,860,593
Effect of dilution due to employee stock options		323,845		555,665		437,312		491,347
Denominator for diluted net income per common share — weighted-average shares outstanding		22,862,347		22,449,793		22,724,286		22,351,940

Basic net income per common share	$	0.54	$	0.56	$	2.05	$	1.58

Diluted net income per common share	$	0.53	$	0.54	$	2.01	$	1.54

Inventory (Tables)

9 Months Ended

Dec. 29, 2012

Inventory, Net [Abstract]

Inventory

Inventories are stated at the lower of cost or market, using the first-in, first-out method, and are summarized below:

	December 29, 2012		March 31, 2012
Raw materials	$	17,606	$	15,056
Work in process		39,947		39,480
Finished goods		115,072		104,269
	$	172,625	$	158,805

Intangible Assets (Tables)

9 Months Ended

Dec. 29, 2012

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule Of Intangible Assets

		December 29, 2012				March 31, 2012
	Weighted Average Useful Lives	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Product approvals	15	$	6,199	$	2,548	$	6,181	$	2,232
Customer relationships and lists	11		5,559		3,330		5,556		3,007
Trade names	15		1,387		1,047		1,386		972
Distributor agreements	5		722		722		722		722
Patents and trademarks	15		5,986		1,734		5,404		1,359
Domain names	10		437		200		437		167
Other	4		980		842		979		826
Total		$	21,270	$	10,423	$	20,665	$	9,285

Schedule Of Estimated Amortization Expense

Estimated amortization expense for the remaining three months of fiscal 2013, the five succeeding fiscal years and thereafter is as follows:

2013	$	399
2014		1,470
2015		1,470
2016		1,461
2017		1,440
2018		1,440
2019 and thereafter		3,167

Debt (Tables)

9 Months Ended

Dec. 29, 2012

Debt [Abstract]

Schedule Of Balances Payable Under Borrowing Facilities

The balances payable under all borrowing facilities are as follows:

	December 29, 2012		March 31, 2012
Notes payable	$	10,901	$	1,041
Total debt		10,901		1,041
Less: current portion		1,360		1,041
Long-term debt	$	9,541	$	—

Reportable Segments (Tables)

9 Months Ended

Dec. 29, 2012

Segment Information [Abstract]

Schedule Of Segment Information

	Three Months Ended						Nine Months Ended
	December 29, 2012			December 31, 2011			December 29, 2012			December 31, 2011
Net External Sales
Plain	$	51,497		$	46,816		$	160,166		$	143,522
Roller		26,115			30,632			87,564			88,711
Ball		10,779			9,962			30,146			30,931
Other		7,945			7,694			22,169			23,024
	$	96,336		$	95,104		$	300,045		$	286,188
Gross Margin
Plain	$	20,220		$	16,772		$	61,868		$	51,800
Roller		10,587			11,238			34,269			31,287
Ball		1,848			2,365			6,350			7,080
Other		3,621			3,251			9,762			9,239
	$	36,276		$	33,626		$	112,249		$	99,406
Selling, General & Administrative Expenses
Plain	$	3,865		$	3,621		$	11,252		$	10,716
Roller		1,682			1,596			5,098			4,731
Ball		729			581			2,279			2,176
Other		968			981			2,754			3,018
Corporate		9,323			8,230			27,053			24,139
	$	16,567		$	15,009		$	48,436		$	44,780
Operating Income
Plain	$	16,160		$	13,028		$	49,946		$	40,724
Roller		8,826			10,292			28,889			28,339
Ball		1,083			1,027			3,965			3,000
Other		2,592			2,231			6,968			6,111
Corporate		(9,502	)		(8,374	)		(27,420	)		(24,590	)
	$	19,159		$	18,204		$	62,348		$	53,584
Geographic External Sales
Domestic	$	82,227		$	82,148		$	258,082		$	244,424
Foreign		14,109			12,956			41,963			41,764
	$	96,336		$	95,104		$	300,045		$	286,188
Intersegment Sales
Plain	$	757		$	650		$	2,278		$	1,886
Roller		4,372			4,130			13,677			12,210
Ball		671			451			1,844			1,188
Other		5,760			5,857			18,340			17,070
	$	11,560		$	11,088		$	36,139		$	32,354

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Net income per common share:
Net income	$ 12,109	$ 12,167	$ 45,767	$ 34,471
Denominator for basic net income per common share-weighted-average shares outstanding	22,538,502	21,894,128	22,286,974	21,860,593
Effect of dilution due to employee stock options	323,845	555,665	437,312	491,347
Denominator for diluted net income per common share - weighted-average shares outstanding	22,862,347	22,449,793	22,724,286	22,351,940
Basic net income per common share	$ 0.54	$ 0.56	$ 2.05	$ 1.58
Diluted net income per common share	$ 0.53	$ 0.54	$ 2.01	$ 1.54

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 18
-Article 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Net Income Per Common Share (Details Textual) - shares	9 Months Ended
Net Income Per Common Share (Details Textual) - shares	Dec. 29, 2012	Dec. 31, 2011
Net income per common share:
Number of employee stock options excluded from the calculation of diluted earnings per share	209,500	15,100
Unvested restricted stock shares	300

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventory (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Mar. 31, 2012
Inventory [Abstract]
Raw materials	$ 17,606	$ 15,056
Work in process	39,947	39,480
Finished goods	115,072	104,269
Inventory, total	$ 172,625	$ 158,805

Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Mar. 31, 2012
Intangible Assets [Line Items]
Gross Carrying Amount	$ 21,270	$ 20,665
Accumulated Amortization	$ 10,423	9,285
Product Approvals [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	15 years
Gross Carrying Amount	$ 6,199	6,181
Accumulated Amortization	$ 2,548	2,232
Customer Relationships And Lists [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	11 years
Gross Carrying Amount	$ 5,559	5,556
Accumulated Amortization	$ 3,330	3,007
Trade Names [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	15 years
Gross Carrying Amount	$ 1,387	1,386
Accumulated Amortization	$ 1,047	972
Distributor Agreements [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	5 years
Gross Carrying Amount	$ 722	722
Accumulated Amortization	$ 722	722
Patents And Trademarks [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	15 years
Gross Carrying Amount	$ 5,986	5,404
Accumulated Amortization	$ 1,734	1,359
Domain Names [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	10 years
Gross Carrying Amount	$ 437	437
Accumulated Amortization	$ 200	167
Other [Member]
Intangible Assets [Line Items]
Weighted Average Useful Lives	4 years
Gross Carrying Amount	$ 980	979
Accumulated Amortization	$ 842	$ 826

Intangible Assets (Details 1) $ in Thousands	Dec. 29, 2012 USD ($)
Intangible Assets [Abstract]
2013	$ 399
2014	1,470
2015	1,470
2016	1,461
2017	1,440
2018	1,440
2019 and thereafter	$ 3,167

Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Intangible Assets [Abstract]
Amortization of intangible assets	$ 363	$ 374	$ 1,127	$ 1,112

Debt (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Mar. 31, 2012
Short-term Debt [Line Items]
Notes payable	$ 10,901	$ 1,041
Total debt	10,901	1,041
Less: current portion	1,360	1,041
Long-term debt	$ 9,541	$ 0

Debt (Details Textual) SFr in Thousands, $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
Debt (Details Textual) SFr in Thousands, $ in Thousands	Nov. 30, 2010 USD ($)	Dec. 29, 2012 USD ($)	Dec. 29, 2012 USD ($)	Dec. 29, 2012 CHF (SFr)	Oct. 27, 2008 USD ($)	Oct. 27, 2008 CHF (SFr)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cash paid for purchase price		$ 5,053	$ 5,053	SFr 4,767
Fixed Rate Residential Mortgage [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Period for fixed rate on mortgage loan		20 years
Mortgage loan fixed rate		$ 9,857	9,857	9,300
Mortgage loan interest rate		2.90%
Mortgage loan		$ 10,050	10,050	9,184
Land and Building [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Land and building leased		14,910	14,910	SFr 14,067
Credit Suisse Credit Agreement [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Current borrowing capacity					$ 4,377	SFr 4,000
JP Morgan Credit Agreement [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Remaining credit capacity		144,455	144,455
RBCA [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Letters of credit, outstanding		$ 5,545	$ 5,545
Five-Year Senior Secured Revolving Credit Facility [Member] \| JP Morgan Credit Agreement [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Current borrowing capacity	$ 150,000
Additional borrowing capacity	100,000
Borrowing capacity incremental value	$ 25,000
Prime Rate Loans [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Line of credit facility, interest rate		0.50%	0.50%	0.50%
LIBOR Rate Loans [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Line of credit facility, interest rate		1.50%	1.50%	1.50%
Maximum [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Consolidated net debt adjusted EBITDA ratio			3.25
Consolidated fixed charge coverage ratio			1.5
Minimum [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Consolidated net debt adjusted EBITDA ratio			1
Consolidated fixed charge coverage ratio			1

Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Income Taxes [Line Items]
Effective income tax rate	35.10%	29.20%	32.10%	33.80%
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations	$ 105
Minimum [Member]
Income Taxes [Line Items]
Income Tax Credits and Adjustments			$ 1,200
Maximum [Member]
Income Taxes [Line Items]
Income Tax Credits and Adjustments			$ 1,500
Without Discrete Item [Member]
Income Taxes [Line Items]
Effective income tax rate	35.60%	34.50%

Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Reportable Segments (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Net External Sales	$ 96,336	$ 95,104	$ 300,045	$ 286,188
Gross Margin	36,276	33,626	112,249	99,406
Selling, General & Administrative Expenses	16,567	15,009	48,436	44,780
Operating income	19,159	18,204	62,348	53,584
Intersegment Sales	11,560	11,088	36,139	32,354
Roller [Member]
Segment Reporting Information [Line Items]
Net External Sales	26,115	30,632	87,564	88,711
Gross Margin	10,587	11,238	34,269	31,287
Selling, General & Administrative Expenses	1,682	1,596	5,098	4,731
Operating income	8,826	10,292	28,889	28,339
Intersegment Sales	4,372	4,130	13,677	12,210
Plain [Member]
Segment Reporting Information [Line Items]
Net External Sales	51,497	46,816	160,166	143,522
Gross Margin	20,220	16,772	61,868	51,800
Selling, General & Administrative Expenses	3,865	3,621	11,252	10,716
Operating income	16,160	13,028	49,946	40,724
Intersegment Sales	757	650	2,278	1,886
Ball [Member]
Segment Reporting Information [Line Items]
Net External Sales	10,779	9,962	30,146	30,931
Gross Margin	1,848	2,365	6,350	7,080
Selling, General & Administrative Expenses	729	581	2,279	2,176
Operating income	1,083	1,027	3,965	3,000
Intersegment Sales	671	451	1,844	1,188
Other [Member]
Segment Reporting Information [Line Items]
Net External Sales	7,945	7,694	22,169	23,024
Gross Margin	3,621	3,251	9,762	9,239
Selling, General & Administrative Expenses	968	981	2,754	3,018
Operating income	2,592	2,231	6,968	6,111
Intersegment Sales	5,760	5,857	18,340	17,070
Corporate [Member]
Segment Reporting Information [Line Items]
Selling, General & Administrative Expenses	9,323	8,230	27,053	24,139
Operating income	(9,502)	(8,374)	(27,420)	(24,590)
Domestic [Member]
Segment Reporting Information [Line Items]
Net External Sales	82,227	82,148	258,082	244,424
Foreign [Member]
Segment Reporting Information [Line Items]
Net External Sales	$ 14,109	$ 12,956	$ 41,963	$ 41,764