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Fair Value Measurements (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 04, 2020 | Dec. 31, 2019
Assets [Abstract] |  |
Held-to-maturity Securities Transferred | $ 0 | $ 0
Held-to-maturity Securities, Unrecognized Holding Gain | 0 | 0
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities | 0 | 0
Held-to-maturity Securities, Unrecognized Holding Loss | 0 | 0
Liabilities [Abstract] |  |
Long-term debt, fair value | 574,800 | 632,200
Carrying value of long-term debt, excluding derivative liabilities | 567,922 | 515,931
Fair Value, Measurements, Recurring [Member] |  |
Assets [Abstract] |  |
Assets held in rabbi trusts | 48,137 | 52,148
Available for sale securities | 4,073 | 4,405
Fair value assets | 52,210 | 56,553
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets [Abstract] |  |
Assets held in rabbi trusts | 33,687 | 34,280
Available for sale securities | 4,073 | 4,405
Fair value assets | 37,760 | 38,685
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets [Abstract] |  |
Assets held in rabbi trusts | 14,450 | 17,868
Available for sale securities | 0 | 0
Fair value assets | 14,450 | 17,868
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets [Abstract] |  |
Assets held in rabbi trusts | 0 | 0
Available for sale securities | 0 | 0
Fair value assets | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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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=118939692&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=118939692&loc=d3e27232-111563 + Details
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- Definition Amount of accumulated unrealized loss 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 (c) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563 + 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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- Definition Amount, before tax, of other-than-temporary impairment (OTTI) on investment in debt security measured at amortized cost (held-to-maturity), recognized in earnings and other comprehensive income (OCI). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=118954083&loc=SL6284422-111562 + Details
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