Segment Information - Summary of Unallocated Corporate Overhead (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Jun. 25, 2016	Jun. 27, 2015
Segment Reporting Information [Line Items]
Stock-based compensation	$ 12,106	$ 10,199	$ 22,047	$ 19,873
Unallocated corporate
Segment Reporting Information [Line Items]
Stock-based compensation	7,746	6,419	13,854	12,699
Compensation, benefits, and other employee-related expenses	7,738	7,234	20,279	17,930
External consulting and other service expenses	6,656	3,130	11,832	6,771
Information Technology	2,364	1,685	5,496	3,549
Depreciation	2,111	1,779	3,583	3,677
Acquisition and integration	7,260	3,956	11,023	3,594
Other general unallocated corporate	3,011	2,103	6,178	4,240
Total unallocated corporate expense	$ 36,886	$ 26,306	$ 72,245	$ 52,460