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Accounting Policies - Deferred Financing Costs (Details) - Senior Notes	Dec. 31, 2021	May 24, 2021	May 23, 2017
2025 Notes
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.75%		6.75%
2028 Notes
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	7.125%	7.125%

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ References

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