Net Income per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Reconciliation of Net Income per Common Share [Line Items]
Net income	$ 16,992	$ 23,471
Basic weighted-average shares outstanding	54,113,000	55,095,000
Diluted weighted-average shares outstanding	54,844,000	56,251,000
Net income per share – basic (in USD per share)	$ 0.31	$ 0.43
Net income per share – diluted (in USD per share)	$ 0.31	$ 0.42
Stock Options [Member]
Reconciliation of Net Income per Common Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	700,000	1,000,000
Stock Options [Member]
Reconciliation of Net Income per Common Share [Line Items]
Effect of dilutive securities	353,000	690,000
Restricted Stock [Member]
Reconciliation of Net Income per Common Share [Line Items]
Effect of dilutive securities	378,000	466,000