Earnings Per Common Share - Reconciliation of Weighted Average Number of Common Shares Outstanding (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Weighted average common shares outstanding – basic (in shares)	261,865	204,289	256,129	202,380
Dilutive effect of share-based awards (in shares)	685	1,642	0	1,520
Equity forward contract (in shares)	0	2,569	0	2,151
Weighted average common shares outstanding – diluted (in shares)	262,550	208,500	256,129	206,051