Long-Term Debt Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 28, 2019
Debt Instrument [Line Items]
Total debt	$ 183,481	$ 175,229
Deferred debt issuance costs	(519)	(561)
Current maturities of long-term debt	0	790
Long-term debt	$ 183,481	$ 174,439
Revolving credit facility with interest at a variable rate (June 27, 2020 - 1.2%; December 28, 2019 - 2.8%)
Debt Instrument [Line Items]
Interest rate	1.20%	2.80%
Total debt	$ 84,000	$ 75,000
Fixed rate notes due in 2025 with an interest rate of 4.22%
Debt Instrument [Line Items]
Total debt	50,000	50,000
Fixed rate notes due in 2028 with an interest rate of 4.40%
Debt Instrument [Line Items]
Total debt	50,000	50,000
Other amounts
Debt Instrument [Line Items]
Total debt	$ 0	$ 790

Contractual interest rate for funds borrowed, under the debt agreement.

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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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