Equity and Earnings Per Common Share - Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Equity and Earnings Per Common Share
Net income	$ 97,820	$ 87,012	$ 86,507	$ 84,014	$ 79,395	$ 80,040	$ 271,339	$ 243,449
Less preferred stock dividends	(138)			(138)			(413)	(413)
Net income (loss) available to common shareholders	$ 97,682			$ 83,876			$ 270,926	$ 243,036
Net income per share-basic (in dollars per share)	$ 0.20			$ 0.18			$ 0.57	$ 0.51
Net income per share-diluted (in dollars per share)	$ 0.20			$ 0.17			$ 0.56	$ 0.51
Basic weighted average common shares outstanding	479,676			478,460			479,267	478,144
Weighted average common shares outstanding-diluted	482,840			480,318			481,908	480,342