Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Information
Interest income	$ 89,270	$ 72,438	$ 165,282	$ 151,987
Interest expense	17,239	8,031	27,526	15,617
Net Interest Income	72,031	64,407	137,756	136,370
Provision for credit losses	4,768		6,749
Provision for credit losses	6,212	(315)	8,663	1,348
Net Interest Income After Provision for Credit Losses	65,819	64,722	129,093	135,022
Noninterest income	39,171	32,855	73,768	76,791
Noninterest expense	32,957	28,183	63,990	58,267
Income Before Income Taxes	72,033	69,394	138,871	153,546
Income taxes	18,098	17,977	34,794	40,146
Net Income	53,935	51,417	104,077	113,400
Total assets	11,086,055	9,881,532	11,086,055	9,881,532	$ 11,278,638
Other
Segment Information
Interest income	2,062	1,316	3,763	2,531
Interest expense	(373)	(784)	(624)	(1,361)
Net Interest Income	2,435	2,100	4,387	3,892
Net Interest Income After Provision for Credit Losses	2,435	2,100	4,387	3,892
Noninterest income	(1,357)	(1,409)	(2,995)	(2,502)
Noninterest expense	5,923	4,358	10,925	7,977
Income Before Income Taxes	(4,845)	(3,667)	(9,533)	(6,587)
Income taxes	(1,424)	(924)	(2,839)	(1,658)
Net Income	(3,421)	(2,743)	(6,694)	(4,929)
Total assets	83,229	49,521	83,229	49,521
Multifamily | Operating Segments
Segment Information
Interest income	383	204	640	411
Net Interest Income	383	204	640	411
Provision for credit losses	1,153		1,153
Net Interest Income After Provision for Credit Losses	(770)	204	(513)	411
Noninterest income	49,430	28,572	81,616	61,806
Noninterest expense	21,959	13,626	38,490	30,070
Income Before Income Taxes	26,701	15,150	42,613	32,147
Income taxes	7,145	4,179	11,565	9,215
Net Income	19,556	10,971	31,048	22,932
Total assets	330,676	238,165	330,676	238,165
Mortgage Warehousing | Operating Segments
Segment Information
Interest income	23,247	29,935	43,576	68,522
Interest expense	5,576	1,599	7,597	3,323
Net Interest Income	17,671	28,336	35,979	65,199
Provision for credit losses	834	(40)	627	(1,124)
Net Interest Income After Provision for Credit Losses	16,837	28,376	35,352	66,323
Noninterest income	1,350	3,079	3,210	7,196
Noninterest expense	2,441	2,703	5,367	5,599
Income Before Income Taxes	15,746	28,752	33,195	67,920
Income taxes	3,878	7,304	8,168	17,289
Net Income	11,868	21,448	25,027	50,631
Total assets	2,836,998	4,265,162	2,836,998	4,265,162
Banking | Operating Segments
Segment Information
Interest income	63,578	40,983	117,303	80,523
Interest expense	12,036	7,216	20,553	13,655
Net Interest Income	51,542	33,767	96,750	66,868
Provision for credit losses	4,225	(275)	6,883	2,472
Net Interest Income After Provision for Credit Losses	47,317	34,042	89,867	64,396
Noninterest income	(10,252)	2,613	(8,063)	10,291
Noninterest expense	2,634	7,496	9,208	14,621
Income Before Income Taxes	34,431	29,159	72,596	60,066
Income taxes	8,499	7,418	17,900	15,300
Net Income	25,932	21,741	54,696	44,766
Total assets	$ 7,835,152	$ 5,328,684	$ 7,835,152	$ 5,328,684