Long-Term Debt Debt Balances (Details) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 29, 2019
Debt Instrument [Line Items]
Total obligations under capital leases	$ 1,958	$ 2,524
Long-term Debt	535,521	471,149
Less: current portion	(5,437)	(5,866)
Less: deferred financing costs	(7,395)	(7,768)
Debt Instrument, Unamortized Discount	(1,883)	(1,950)
Long-term debt, net of current portion	520,806	455,565
Term Loan B Facility [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	421,813	422,875
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	$ 111,750	$ 45,750

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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