Maturities of Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 31, 2018	Dec. 30, 2018
2020	$ 39,925		$ 40,752
2021	40,070		37,519
2022	36,928		34,538
2023	34,381		30,763
2024	29,987		27,388
Thereafter	92,849		100,310
Total future minimum rental commitments	274,140		271,270
Less – amounts representing interest	(38,091)
Total lease liabilities	236,049	$ 226,800
2019	3,302		2,396
2020	2,816		2,415
2021	2,834		2,433
2022	2,858		2,451
2023	2,882		2,474
Thereafter	25,813		23,781
Total future minimum rental commitments	40,505		35,950
Less – amounts representing interest	(20,848)		(18,944)
Total principal payable on finance leases	$ 19,657		$ 17,006