Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance at beginning of period	$ 820,939	$ 774,434	$ 776,437	$ 743,154
Balance at end of period	864,963	765,471	864,963	765,471
Cash Flow Hedges
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance at beginning of period	(7,355)	(5,427)	(3,814)	(2,810)
Other comprehensive income (loss) before reclassification	(47)	(439)	(11,088)	(5,760)
Tax effect of other comprehensive income (loss) before reclassification	12	112	2,825	1,476
Amount reclassified from AOCL into interest expense	1,941	1,120	8,235	2,922
Tax effect of amount reclassified from AOCL into interest expense	(495)	(287)	(2,102)	(749)
Net current period other comprehensive income (loss), net of tax	1,411	506	(2,130)	(2,111)
Balance at end of period	$ (5,944)	$ (4,921)	$ (5,944)	$ (4,921)