Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Segment Information
Interest income	$ 211,294	$ 76,012
Interest expense	110,601	10,287
Net Interest Income	100,693	65,725
Provision for credit losses	6,867	2,451
Net Interest Income After Provision for Credit Losses	93,826	63,274
Noninterest income	14,264	34,597
Noninterest expense	34,772	31,033
Income Before Income Taxes	73,318	66,838
Income taxes	18,363	16,696
Net Income	54,955	50,142
Total assets	14,240,966	9,650,592	$ 12,615,227
Other
Segment Information
Interest income	1,144	1,701
Interest expense	(1,719)	(251)
Net Interest Income	2,863	1,952
Net Interest Income After Provision for Credit Losses	2,863	1,952
Noninterest income	(2,177)	(1,638)
Noninterest expense	7,216	5,002
Income Before Income Taxes	(6,530)	(4,688)
Income taxes	(1,571)	(1,415)
Net Income	(4,959)	(3,273)
Total assets	150,695	83,456
Multifamily | Operating Segments
Segment Information
Interest income	1,106	257
Net Interest Income	1,106	257
Net Interest Income After Provision for Credit Losses	1,106	257
Noninterest income	16,597	32,186
Noninterest expense	14,631	16,531
Income Before Income Taxes	3,072	15,912
Income taxes	1,106	4,420
Net Income	1,966	11,492
Total assets	341,487	293,286
Mortgage Warehousing | Operating Segments
Segment Information
Interest income	42,318	20,329
Interest expense	27,794	2,021
Net Interest Income	14,524	18,308
Provision for credit losses	1,364	(207)
Net Interest Income After Provision for Credit Losses	13,160	18,515
Noninterest income	1,033	1,860
Noninterest expense	2,755	2,926
Income Before Income Taxes	11,438	17,449
Income taxes	2,797	4,290
Net Income	8,641	13,159
Total assets	3,318,491	2,863,907
Banking | Operating Segments
Segment Information
Interest income	166,726	53,725
Interest expense	84,526	8,517
Net Interest Income	82,200	45,208
Provision for credit losses	5,503	2,658
Net Interest Income After Provision for Credit Losses	76,697	42,550
Noninterest income	(1,189)	2,189
Noninterest expense	10,170	6,574
Income Before Income Taxes	65,338	38,165
Income taxes	16,031	9,401
Net Income	49,307	28,764
Total assets	$ 10,430,293	$ 6,409,943