Segment Information - Reconciliation of Segment Operating Income, Depreciation and Amortization, and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Segment Reporting Information [Line Items]
Operating income	$ 55,440	$ 46,172	$ 154,180	$ 136,903
Depreciation and amortization	23,814	26,068	69,330	70,435
Capital expenditures	10,452	9,402	35,008	29,907
Operating segments
Segment Reporting Information [Line Items]
Operating income	83,109	66,605	234,309	204,665
Depreciation and amortization	21,967	24,130	63,806	64,769
Capital expenditures	9,438	9,009	31,342	28,302
Unallocated corporate
Segment Reporting Information [Line Items]
Operating income	(27,669)	(20,433)	(80,129)	(67,762)
Depreciation and amortization	1,847	1,938	5,524	5,666
Capital expenditures	$ 1,014	$ 393	$ 3,666	$ 1,605