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Earnings Per Share - Summary of Shares Excluded From Diluted Earnings Per Share Calculation (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Out-of-the-money stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	2,241	4,696	2,267	4,756
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	8,000	8,000	8,000	8,000
Restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	8,769	5,066	9,167	5,125
Weighted average shares of Class C Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	0	11	0	523
Performance stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	0	0	199	0
Employee Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	68	0	54	139
Convertible Notes Payable
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-diluted shares excluded from computation of earnings per share (in shares)	27,074		27,074	0

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

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+ References

No definition available.

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