Leases - Undiscounted Cash Flows for the Finance and Operating Leases (Detail) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 29, 2018
Operating Leased Assets [Line Items]
2019 Remainder	$ 10,729
2020	40,863
2021	26,453
2022	17,290
2023	10,262
Thereafter	925
Total future minimum lease payments	106,522
Less amount representing interest (2.1% to 4.4%)	5,757
Present value of minimum lease payments	100,765
Current maturities of long-term debt	39,375	$ 43,561
Long-term debt, excluding current maturities	61,390	$ 84,864
2019 Remainder	276
2020	680
2021	615
2022	621
2023	550
Thereafter	299
Total future minimum lease payments	3,041
Less amount representing interest (2.1% to 4.4%)	258
Present value of minimum lease payments	2,783
Other current liabilities [Member]
Operating Leased Assets [Line Items]
Operating lease, liability, current	680
Deferred income taxes and other noncurrent liabilities [Member]
Operating Leased Assets [Line Items]
Operating lease, liability, non-current	$ 2,103