Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 28, 2018
Operating Leases, After Adoption of 842:
2019	$ 12,196
2020	24,703
2021	21,977
2022	19,899
2023	16,881
Thereafter	99,277
Total	194,933
Less interest	(56,533)
Present value	138,400
Finance Leases, After Adoption of 842:
2019	194
2020	387
2021	382
2022	364
2023	305
Thereafter	272
Total	1,904
Less interest	(290)
Present value	1,614
Operating Leases, Before Adoption of 842:
2019		$ 24,666
2020		23,047
2021		19,918
2022		17,838
2023		14,876
Thereafter		47,330
Total minimum lease payments		147,675
Capital Leases, Before Adoption of 842:
2019		56
2020		55
2021		50
2022		42
2023		4
Thereafter		0
Total minimum lease payments		207
Less interest		(49)
Present value of capital lease obligations		$ 158
Real Estate | Third Party
Operating Leases, After Adoption of 842:
2019	5,364
2020	12,709
2021	12,639
2022	12,606
2023	12,084
Thereafter	96,923
Total	152,325
Real Estate | Related Party
Operating Leases, After Adoption of 842:
2019	257
2020	365
2021	0
2022	0
2023	0
Thereafter	0
Total	622
Vehicles and Equipment
Operating Leases, After Adoption of 842:
2019	6,575
2020	11,629
2021	9,338
2022	7,293
2023	4,797
Thereafter	2,354
Total	$ 41,986