Stock-Based Compensation (Details 3) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	2,020,319	2,348,162
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 5 months 9 days	4 years 10 months 10 days
Options Outstanding, Weighted Average Exercise Price	$ 12.01	$ 10.53
Options Exercisable, Number Exercisable	1,223,456
Options Exercisable, Weighted Average Exercise Price	$ 10.11
$0.93-$2.71 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	212,592
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 9 months
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 2.71
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 0.93
Options Outstanding, Weighted Average Exercise Price	$ 1.35
Options Exercisable, Number Exercisable	212,592
Options Exercisable, Weighted Average Exercise Price	$ 1.35
$5.25-$7.50 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	229,259
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	3 years 5 months 23 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 7.50
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 5.25
Options Outstanding, Weighted Average Exercise Price	$ 7.13
Options Exercisable, Number Exercisable	229,259
Options Exercisable, Weighted Average Exercise Price	$ 7.13
$7.78-$10.21 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	152,130
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 9 months 22 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 10.21
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 7.78
Options Outstanding, Weighted Average Exercise Price	$ 9.26
Options Exercisable, Number Exercisable	121,151
Options Exercisable, Weighted Average Exercise Price	$ 9.18
$10.46-$10.46 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	206,280
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 3 months 18 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 10.46
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 10.46
Options Outstanding, Weighted Average Exercise Price	$ 10.46
Options Exercisable, Number Exercisable	106,756
Options Exercisable, Weighted Average Exercise Price	$ 10.46
$10.83-$11.37 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	212,518
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 15 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 11.37
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 10.83
Options Outstanding, Weighted Average Exercise Price	$ 11.30
Options Exercisable, Number Exercisable	123,872
Options Exercisable, Weighted Average Exercise Price	$ 11.25
$11.63-$15.21 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	205,997
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 0 months 15 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 15.21
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 11.63
Options Outstanding, Weighted Average Exercise Price	$ 13.74
Options Exercisable, Number Exercisable	87,966
Options Exercisable, Weighted Average Exercise Price	$ 13.12
$15.31-$16.16 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	213,464
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 6 months 7 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 16.16
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 15.31
Options Outstanding, Weighted Average Exercise Price	$ 15.85
Options Exercisable, Number Exercisable	141,573
Options Exercisable, Weighted Average Exercise Price	$ 15.92
$16.41-$16.59 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	26,400
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 5 months 16 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 16.59
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 16.41
Options Outstanding, Weighted Average Exercise Price	$ 16.52
Options Exercisable, Number Exercisable	10,077
Options Exercisable, Weighted Average Exercise Price	$ 16.52
$16.70-$16.70 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	351,079
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 2 months 19 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 16.70
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 16.70
Options Outstanding, Weighted Average Exercise Price	$ 16.70
Options Exercisable, Number Exercisable	145,755
Options Exercisable, Weighted Average Exercise Price	$ 16.70
$17.23-$19.84 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	210,600
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 0 months 4 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 19.84
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 17.23
Options Outstanding, Weighted Average Exercise Price	$ 18.35
Options Exercisable, Number Exercisable	44,455
Options Exercisable, Weighted Average Exercise Price	$ 18.53
$0.93-$19.84 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	2,020,319
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 5 months 9 days
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 19.84
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 0.93
Options Outstanding, Weighted Average Exercise Price	$ 12.01
Options Exercisable, Number Exercisable	1,223,456
Options Exercisable, Weighted Average Exercise Price	$ 10.11