Shareholders' Equity (Tables)

12 Months Ended

Dec. 29, 2012

Shareholders' Equity [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Total stock-based compensation expense for 2012, 2011 and 2010, was as follows (in thousands):

	2012		2011		2010
Stock options	$	3,688	$	2,721	$	2,491
Stock awards	6,618		2,250		1,471
Total stock-based compensation expense(1)	10,306		4,971		3,962
Income tax benefit	3,576		1,710		1,379
Total stock-based compensation expense, net of tax	$	6,730	$	3,261	$	2,583

⁽¹⁾ Includes $5.6 million of CEO transition costs.

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of our stock option activity for the year ended December 29, 2012 was as follows (in thousands, except per share amounts and years):

	Stock Options		Weighted- Average Exercise Price per Share		Weighted- Average Remaining  Contractual Term (years)	Aggregate Intrinsic Value (1)
Outstanding at December 31, 2011	3,305		$	13.36	5.4	$	29,907
Granted	267		28.32
Exercised	(679	)	8.32
Canceled/Forfeited	(4	)	22.32
Outstanding at December 29, 2012	2,889		$	15.92	5.0	$	26,109
Exercisable at December 29, 2012	2,250		$	15.86	4.2	$	19,917
Vested and expected to vest at December 29, 2012	2,830		$	15.93	5.0	$	25,496

⁽¹⁾  Aggregate intrinsic value includes only those options where the current share price is equal to or greater than the share price on the date of grant.

Schedule Of Additional Information Related To Stock Option [Text Block]

Other information pertaining to options for the years ended December 29, 2012; December 31, 2011; and January 1, 2011; is as follows (in thousands, except per share amounts):

	2012		2011		2010
Weighted-average grant date fair value of stock options granted	$	14.28	$	10.91	$	6.18
Total intrinsic value (at exercise) of stock options exercised	$	12,724	$	8,295	$	5,860

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The assumptions used to calculate the fair value of awards granted during 2012, 2011 and 2010 using the Black-Scholes-Merton option-pricing model were as follows:

Valuation Assumptions	2012		2011		2010
Expected dividend yield	0	%	0	%	0	%
Expected volatility	63	%	78	%	78	%
Risk-free interest rate	1.1	%	1.9	%	2.0	%
Expected term (in years)	5.6		5.0		4.9

Schedule Of Share Based Compensation Stock And Performancestock Award Activity [Table Text Block]

Stock award and performance stock award activity was as follows for the year ended December 29, 2012 (in thousands, except per share amounts):

	Time- Based Stock Awards		Weighted-Average Grant Date Fair Value		Performance Stock Awards		Weighted-Average Grant Date Fair Value
Outstanding at December 31, 2011	391		$	9.06	726		$	7.65
Granted	58		28.65		125		28.34
Vested	(190	)	12.73		(291	)	6.70
Canceled/Forfeited	(4	)	8.74		(6	)	14.55
Outstanding at December 29, 2012	255		$	13.62	554		$	11.47

ShareRepurchase [Table Text Block]

Repurchases of our common stock for the years ended December 29, 2012, December 31, 2011 and January 1, 2011 were as follows (in thousands): 

	2012		2011		2010
Amount repurchased under Board approved share repurchase program	$	30,023	$	—	$	—
Amount repurchased in connection with the vesting of employee restricted stock grants	4,869		371		1,391
Total amount repurchased	$	34,892	$	371	$	1,391

Schedule of Earnings Per Share Reconciliation [Table Text Block]

The following computations reconcile net income per share – basic with net income per share – diluted (in thousands, except per share amounts):

	2012		2011		2010
Net income	$	78,094	$	60,478	$	31,568
Reconciliation of weighted-average shares outstanding:
Basic weighted-average shares outstanding	55,516		55,081		54,005
Effect of dilutive securities:
Options	1,059		821		817
Restricted shares	501		530		442
Diluted weighted-average shares outstanding	57,076		56,432		55,264
Net income per share – basic	$	1.41	$	1.10	$	0.58
Net income per share – diluted	$	1.37	$	1.07	$	0.57