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Investment Securities - Investment Securities by Classification Type and Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,460,033	$ 883,832
Gross Unrealized Gains	205	15,341
Gross Unrealized Losses	(128,795)	(4,838)
Fair Value	1,331,443	894,335
Total investment securities	766,396	383,393
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	120
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(92,962)	$ (7,182)
Total investment securities	$ 673,434
Concentration, debt securities	0.00%	0.00%
Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 1,331,443	$ 894,335
Total investment securities	673,434	376,331
U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	68,912	21,494
Gross Unrealized Gains	0	55
Gross Unrealized Losses	(5,053)	(176)
Total investment securities	150,936	141,011
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	120
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(33,585)	(1,768)
U.S. government and agency securities | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	63,859	21,373
Total investment securities	117,351	139,363
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	171,087	213,158
Gross Unrealized Gains	172	8,908
Gross Unrealized Losses	(18,233)	(854)
Municipal securities | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	153,026	221,212
Residential CMO and MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	479,473	307,366
Gross Unrealized Gains	0	2,111
Gross Unrealized Losses	(55,087)	(2,593)
Total investment securities	290,318	24,529
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(17,440)	(153)
Residential CMO and MBS | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	424,386	306,884
Total investment securities	272,878	24,376
Commercial CMO and MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	714,136	313,169
Gross Unrealized Gains	19	3,891
Gross Unrealized Losses	(49,734)	(1,199)
Total investment securities	325,142	217,853
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(41,937)	(5,261)
Commercial CMO and MBS | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	664,421	315,861
Total investment securities	283,205	212,592
Corporate obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,000	2,007
Gross Unrealized Gains	0	7
Gross Unrealized Losses	(166)	0
Corporate obligations | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	3,834	2,014
Other asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	22,425	26,638
Gross Unrealized Gains	14	369
Gross Unrealized Losses	(522)	(16)
Other asset-backed securities | Fair Value, Recurring [Member]
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 21,917	$ 26,991

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