Business Combinations - Pro-forma Information (Details) - Broadmark - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Pro-forma information
Interest income	$ 984,892	$ 777,248
Interest expense	(721,239)	(409,412)
Provision for loan losses	(11,864)	(72,708)
Non-interest income	(410,081)	(265,117)
Non-interest expense	(274,981)	(413,022)
Income before provision for income taxes	386,889	147,223
Income tax expense	(7,174)	(29,733)
Net income	379,715	117,490
Nonrecurring transaction costs excluded from pro forma non-interest expense	$ 30,700	$ 30,700