Stockholders' Equity - Reclassified from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Amounts Reclassified from AOCI
Income tax benefit (provision)	$ (2,178)	$ (1,344)	$ (1,469)	$ (3,319)
Net income	$ 19,949	20,018	51,944	41,385
Reclassifications From Accumulated Other Comprehensive Income (Loss)
Amounts Reclassified from AOCI
Income tax benefit (provision)		22	(633)	67
Net income		(42)	1,175	(124)
Unrealized Gain on Cash Flow Hedge | Reclassifications From Accumulated Other Comprehensive Income (Loss)
Amounts Reclassified from AOCI
Interest expense		$ (64)	$ 1,808	$ (191)