Earnings Per Common Share - Reconciliation of Weighted Average Number of Common Shares Outstanding (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Weighted average common shares outstanding – basic (in shares)	253,213	201,787	253,076	201,294
Dilutive effect of share-based awards (in shares)	0	1,634	0	1,459
Equity forward contract (in shares)	0	1,877	0	1,834
Weighted average common shares outstanding – diluted (in shares)	253,213	205,298	253,076	204,587