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Fair Value Measurements - Fair Value of Debt (Details) - Fixed Rate Debt - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Long-term debt, fair value | $ 1,361,000 | $ 1,371,000
Long-Term Debt, Fair Value by Fair Value Hierarchy Level | us-gaap:FairValueInputsLevel2Member | us-gaap:FairValueInputsLevel2Member
Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |
Long-term debt, fair value | $ 1,296,325 | $ 1,295,867

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | instant

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- Definition Indicates level within fair value hierarchy of long-term debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Details
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- Details
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- Details
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