Debt Instrument, Changes In Long-Term Debt [Roll Forward]

No definition available.

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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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- 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

Interest paid other than in cash for example by issuing additional debt securities. As a noncash item, it is added to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

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- Definition

The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

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INDEBTEDNESS - Estimated Fair Values of Debt Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Principal prepayment	$ (9,250)	$ (2,075)	$ (5,150)
Interest rate PIK	7,525	12,256	$ 0
Senior Notes
Debt Instrument [Line Items]
Total debt instruments	1,124,353
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	1,124,353
Senior Notes \| First Lien Term Loan
Debt Instrument [Line Items]
Total debt instruments	888,787
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	888,787
Senior Notes \| Second Lien Notes
Debt Instrument [Line Items]
Total debt instruments	235,566
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	235,566
Senior Notes \| Markets for Identical Item (Level 1)
Debt Instrument [Line Items]
Total debt instruments	0
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	0
Senior Notes \| Markets for Identical Item (Level 1) \| First Lien Term Loan
Debt Instrument [Line Items]
Total debt instruments	0
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	0
Senior Notes \| Markets for Identical Item (Level 1) \| Second Lien Notes
Debt Instrument [Line Items]
Total debt instruments	0
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	0
Senior Notes \| Significant Other Observable Inputs (Level 2)
Debt Instrument [Line Items]
Total debt instruments	913,461
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	913,461
Senior Notes \| Significant Other Observable Inputs (Level 2) \| First Lien Term Loan
Debt Instrument [Line Items]
Total debt instruments	913,461
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	913,461
Senior Notes \| Significant Other Observable Inputs (Level 2) \| Second Lien Notes
Debt Instrument [Line Items]
Total debt instruments	0
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	0
Senior Notes \| Significant Unobservable Inputs (Level 3)
Debt Instrument [Line Items]
Total debt instruments	411,119	411,119
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020	411,119
Principal prepayment	(174,000)
Second Lien Notes fair value as of December 31, 2020	266,438	$ 411,119
Senior Notes \| Significant Unobservable Inputs (Level 3) \| First Lien Term Loan
Debt Instrument [Line Items]
Total debt instruments	0
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Second Lien Notes fair value as of December 31, 2020	0
Senior Notes \| Significant Unobservable Inputs (Level 3) \| Second Lien Notes
Debt Instrument [Line Items]
Total debt instruments	266,438
Debt Instrument, Changes In Long-Term Debt [Roll Forward]
Second Lien Notes fair value as of January 1, 2020
Interest rate PIK	7,525
Change in fair value	21,794
Second Lien Notes fair value as of December 31, 2020	$ 266,438