Employee Benefit and Pension Plans - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	$ 69,777	$ 63,064	$ 69,614
Level 1
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	895	686
Level 2
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	68,882	62,378
Cash
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	895	686
Cash | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	895	686
Cash | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Equity fund
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	43,540	32,513
Equity fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Equity fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	43,540	32,513
Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	15,149	24,852
Insurance contracts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Insurance contracts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	15,149	24,852
Mixed fund
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	615	4,114
Mixed fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Mixed fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	615	4,114
Pension fund
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	9,578	899
Pension fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Pension fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	$ 9,578	$ 899