Leases - Maturities of Lease Liabilities (Details)	Dec. 28, 2019 USD ($)
Operating Leases
2020	$ 25,181,000
2021	18,597,000
2022	13,054,000
2023	10,006,000
2024	5,745,000
Thereafter	17,609,000
Total lease payments	90,192,000
Less: Interest	9,742,000
Present value of lease liabilities	80,450,000
Finance Leases
2020	630,000
2021	602,000
2022	516,000
2023	436,000
2024	112,000
Thereafter	0
Total lease payments	2,296,000
Less: Interest	150,000
Present value of lease liabilities	2,146,000
Total
2020	25,811,000
2021	19,199,000
2022	13,570,000
2023	10,442,000
2024	5,857,000
Thereafter	17,609,000
Total lease payments	92,488,000
Less: Interest	9,892,000
Present value of operating lease and finance lease liabilities	82,596,000
Payments for leases with option to extend	0
Operating lease payments related to leases not yet commenced	200,000
Finance lease payments related to options to extend lease terms	0
Minimum lease payments for leases signed but not yet commenced	$ 400,000