Long-term Compensation Plans - Activity in Payment Awards (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total
Beginning balance (in shares)	4,833,766
Granted (in shares)	1,743,117
Exercised (in shares)	(785,489)
Canceled (in shares)	(123,982)
Forfeited (in shares)	(727,724)
Ending balance (in shares)	4,939,688	4,833,766
Stock Options
Beginning balance (in shares)	349,009
Granted (in shares)	(242,334)	(229,724)
Exercised (in shares)	(20,212)
Cancelled (in shares)	(5,511)
Forfeited (in shares)	0
Ending balance (in shares)	565,620	349,009
RSUs
Equity Classified
Beginning balance (in shares)	4,189,660
Granted (in shares)	(1,500,783)	(3,404,362)	(1,581,444)
Exercised (in shares)	(647,238)
Cancelled (in shares)	(118,471)
Forfeited (in shares)	(727,724)
Ending balance (in shares)	4,197,010	4,189,660
Liability Classified
Outstanding, beginning balance (in shares)	295,097
Granted (in shares)	0
Exercised/Issued (in shares)	(118,039)
Cancelled (in shares)	0
Forfeited (in shares)	0
Outstanding, ending balance (in shares)	177,058	295,097