Interest Rate Derivatives - Position Related to Derivative Contracts (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Dec. 28, 2019
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 3,602	$ 7,985
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative liabilities	11,831	0
Interest rate swap | Designated as Hedging Instrument | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	3,602	6,382
Interest rate swap | Designated as Hedging Instrument | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	1,603
Interest rate swap | Not Designated as Hedging Instrument | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	584	0
Interest rate collar | Not Designated as Hedging Instrument | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	1,923	0
Interest rate collar | Not Designated as Hedging Instrument | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 9,324	$ 0