Fair Value (Details) - USD ($) $ in Thousands	Mar. 27, 2020	Dec. 27, 2019
Liabilities
Total liabilities at fair value	$ 7,736	$ 13,878
Long term debt, carrying amount	150,000	150,000
Long term debt, fair value	160,000	165,000
Level 2
Assets
Cash surrender value of life insurance	13,779	17,702
Liabilities
Deferred compensation	4,361	4,719
Forward exchange contracts	410	87
Level 3
Liabilities
Contingent consideration	$ 2,965	$ 9,072

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Amount of liability recognized arising from contingent consideration in a business combination.

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Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Fair value of financial and nonfinancial obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Fair value portion of other liabilities.

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