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Fair Value Measurements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 03, 2021 | Jul. 03, 2021 | Dec. 31, 2020
Assets [Abstract] |  |  |
Held-to-maturity Securities Transferred |  | $ 0 | $ 0
Held-to-maturity Securities, Unrecognized Holding Gain | $ 0 | 0 | 0
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities | 0 |  | 0
Held-to-maturity Securities, Unrecognized Holding Loss | 0 | 0 | 0
Liabilities [Abstract] |  |  |
Long-term debt, fair value | 494,800 | 494,800 | 491,400
Carrying value of long-term debt, excluding derivative liabilities | 465,344 | 465,344 | 406,398
Derivative, Notional Amount | 100,000 | 100,000 | 100,000
Fair Value, Measurements, Recurring [Member] |  |  |
Assets [Abstract] |  |  |
Assets held in rabbi trusts | 58,326 | 58,326 | 57,892
Available for sale securities | 4,710 | 4,710 | 4,917
Fair value assets | 63,036 | 63,036 | 62,809
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |
Assets [Abstract] |  |  |
Assets held in rabbi trusts | 32,479 | 32,479 | 34,145
Available for sale securities | 4,710 | 4,710 | 4,917
Fair value assets | 37,189 | 37,189 | 39,062
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |
Assets [Abstract] |  |  |
Assets held in rabbi trusts | 25,847 | 25,847 | 23,747
Available for sale securities | 0 | 0 | 0
Fair value assets | 25,847 | 25,847 | 23,747
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |  |
Assets [Abstract] |  |  |
Assets held in rabbi trusts | 0 | 0 | 0
Available for sale securities | 0 | 0 | 0
Fair value assets | $ 0 | $ 0 | $ 0

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- Definition Amount of investment in debt security, measured at amortized cost, transferred to investment in debt security, measured at fair value, with change in fair value recognized in other comprehensive income (available-for-sale) and net income (trading). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27405-111563 + Details
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- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563 + Details
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- Definition 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. + References No definition available. + Details
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