Earnings Per Share ("EPS") (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 77,223	$ 47,695
Average common shares outstanding (in shares)	112,888	92,520
Average potential dilutive common shares (in shares)	249	351
Average diluted common shares (in shares)	113,137	92,871
Basic earnings per share (in dollars per share)	$ 0.68	$ 0.52
Diluted earnings per share (in dollars per share)	$ 0.68	$ 0.51