Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share Reconciliation
Net income available to common shareholders	$ 84,096	$ 110,158
Basic weighted average number of common shares outstanding (in shares)	403,519,088	331,601,260
Plus: Common stock equivalents (in shares)	1,905,035	1,233,206
Diluted weighted average number of common shares outstanding (in shares)	405,424,123	332,834,466
Earnings per common share:
Basic (usd per share)	$ 0.21	$ 0.33
Diluted (usd per share)	$ 0.21	$ 0.33
Anti-dilutive common stock options and warrants (in shares)	1,900,000	1,300,000