Future Minimum Lease Payments under Scheduled Leases (Detail) $ in Thousands	Dec. 29, 2018 USD ($)
Leases [Abstract]
2019	$ 6,392
2020	3,511
2021	4,191
2022	2,620
2023	2,263
Thereafter	4,631
Total minimum payments	23,608
Amount representing interest	1,666
Obligations under capital leases	21,942
Obligations due within one year	5,896
Long-term obligations under capital leases	16,046
2019	65,071
2020	60,378
2021	50,744
2022	44,798
2023	36,308
Thereafter	232,423
Total minimum payments	$ 489,722