Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-In Capital	Cumulative Translation Adjustments	Retained Earnings
Beginning Balance at Dec. 26, 2009	$ 215,335	$ 354	$ 32,531	$ 2,089	$ 180,361
Beginning Balance, Shares at Dec. 26, 2009		35,359,146
Common stock issued under Employee Stock Purchase Plan	17		17
Common stock issued under Employee Stock Purchase Plan, Shares		1,428
Shares issued under Incentive Stock Plan	740	5	735
Shares issued under Incentive Stock Plan, Shares		469,646
Compensation expense under Incentive Stock Plan	212		212
Purchase and cancellation of common stock	(1,290)	(1)	(89)		(1,200)
Purchase and cancellation of common stock, Shares		(100,532)
Issuance of non-vested stock, net of cancellations, Shares		45,000
Other stock related activity	1,338		1,338
Net income	46,138				46,138
Currency translation adjustments (net of tax)	663			663
Ending Balance at Dec. 25, 2010	263,153	358	34,744	2,752	225,299
Ending Balance, Shares at Dec. 25, 2010		35,774,688
Common stock issued under Employee Stock Purchase Plan	28		28
Common stock issued under Employee Stock Purchase Plan, Shares		1,984
Shares issued under Incentive Stock Plan	629	3	626
Shares issued under Incentive Stock Plan, Shares		291,318
Compensation expense under Incentive Stock Plan	620		620
Purchase and cancellation of common stock	(1,586)	(1)	(80)		(1,505)
Purchase and cancellation of common stock, Shares	(90,268)	(90,268)
Issuance of non-vested stock, net of cancellations		2	(2)
Issuance of non-vested stock, net of cancellations, Shares		178,800
Other stock related activity	924		924
Net income	53,277				53,277
Currency translation adjustments (net of tax)	58			58
Ending Balance at Dec. 31, 2011	317,103	362	36,860	2,810	277,071
Ending Balance, Shares at Dec. 31, 2011	36,156,522	36,156,522
Shares issued under Incentive Stock Plan	1,606	4	1,602
Shares issued under Incentive Stock Plan, Shares		394,861
Compensation expense under Incentive Stock Plan	1,007		1,007
Purchase and cancellation of common stock	(1,943)	(1)	(97)		(1,845)
Purchase and cancellation of common stock, Shares	(70,208)	(70,208)
Issuance of non-vested stock, net of cancellations, Shares		5,000
Other stock related activity	1,663		1,635		28
Other stock related activity, Shares		(8,669)
Dividends paid	(54,716)				(54,716)
Net income	70,962				70,962
Currency translation adjustments (net of tax)	(2,810)			(2,810)
Ending Balance at Dec. 29, 2012	$ 332,872	$ 365	$ 41,007		$ 291,500
Ending Balance, Shares at Dec. 29, 2012	36,477,506	36,477,506