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Long-Term Incentive Compensation - Restricted Stock Awards and Related Information (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Service-based Restricted Stock
Number of Shares
Outstanding, beginning balance (in shares)	1,087
Granted (in shares)	601
Vested (in shares)	(636)
Forfeited (in shares)	(59)
Outstanding, ending balance (in shares)	993
Weighted Average Grant Date Fair Value
Beginning balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 14.07
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	6.77
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	14.69
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	13.60
Ending balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.29
Performance-based Restricted Stock
Number of Shares
Outstanding, beginning balance (in shares)	287
Granted (in shares)	245
Vested (in shares)	(70)
Forfeited (in shares)	(105)
Outstanding, ending balance (in shares)	358
Weighted Average Grant Date Fair Value
Beginning balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.13
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	6.84
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	6.55
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	15.86
Ending balance, weighted average grant date fair value (in dollars per share) | $ / shares	$ 8.49
Restricted Stock
Number of Shares
Outstanding, beginning balance (in shares)	1,374
Granted (in shares)	846
Vested (in shares)	(705)
Forfeited (in shares)	(164)
Outstanding, ending balance (in shares)	1,350

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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