Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Liabilities
Contingent consideration payable for business acquisition	$ 5,000
Recurring Fair Value Measurements
Assets
Money market funds	700	$ 1,100
Interest rate swaps	31,743	12,717
Total assets	32,443	13,817
Liabilities
Contingent consideration payable for business acquisition	500	1,000
Recurring Fair Value Measurements | Level 1
Assets
Money market funds	700	1,100
Interest rate swaps	0	0
Total assets	700	1,100
Liabilities
Contingent consideration payable for business acquisition	0	0
Recurring Fair Value Measurements | Level 2
Assets
Money market funds	0	0
Interest rate swaps	31,743	12,717
Total assets	31,743	12,717
Liabilities
Contingent consideration payable for business acquisition	0	0
Recurring Fair Value Measurements | Level 3
Assets
Money market funds	0	0
Interest rate swaps	0	0
Total assets	0	0
Liabilities
Contingent consideration payable for business acquisition	$ 500	$ 1,000