Fair Value of Financial Instruments - Schedule of Hierarchy Table on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial assets
Investment securities available-for-sale, at fair value	$ 1,140,071	$ 2,601,013
Total derivative assets	44,939	78,129
Financial liabilities
Total derivative liabilities	13,603	12,598
U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	539,256	47,017
Agency
Financial assets
Investment securities available-for-sale, at fair value	1,868	431,438
Corporate
Financial assets
Investment securities available-for-sale, at fair value	446,343	542,548
Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	152,604	764,229
Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value		815,781
Recurring
Financial assets
Investment securities available-for-sale, at fair value	1,140,071	2,601,013
Equity securities	759	13,526
Total derivative assets	5,644	8,948
Financial liabilities
Total derivative liabilities	10,715	12,531
Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	1	1
Financial liabilities
Total derivative liabilities	10	1
Recurring | Interest rate swap contracts
Financial assets
Total derivative assets	5,643	7,053
Financial liabilities
Total derivative liabilities	10,705	12,530
Recurring | Equity warrants
Financial assets
Total derivative assets		1,894
Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	539,256	47,017
Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	1,868	431,438
Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	446,343	542,548
Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	152,604	764,229
Recurring | Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value		815,781
Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	759	925
Total derivative assets	1	1
Financial liabilities
Total derivative liabilities	10	1
Level 1 | Recurring
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	759	925
Total derivative assets	1	1
Financial liabilities
Total derivative liabilities	10	1
Level 1 | Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	1	1
Financial liabilities
Total derivative liabilities	10	1
Level 1 | Recurring | Interest rate swap contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Level 1 | Recurring | Equity warrants
Financial assets
Total derivative assets		0
Level 1 | Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 1 | Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 1 | Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 1 | Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 1 | Recurring | Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value		0
Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,140,071	2,601,013
Equity securities	0	0
Total derivative assets	5,643	7,053
Financial liabilities
Total derivative liabilities	10,705	12,530
Level 2 | Recurring
Financial assets
Investment securities available-for-sale, at fair value	1,140,071	2,601,013
Equity securities	0	0
Total derivative assets	5,643	7,053
Financial liabilities
Total derivative liabilities	10,705	12,530
Level 2 | Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Level 2 | Recurring | Interest rate swap contracts
Financial assets
Total derivative assets	5,643	7,053
Financial liabilities
Total derivative liabilities	10,705	12,530
Level 2 | Recurring | Equity warrants
Financial assets
Total derivative assets		0
Level 2 | Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	539,256	47,017
Level 2 | Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	1,868	431,438
Level 2 | Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	446,343	542,548
Level 2 | Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	152,604	764,229
Level 2 | Recurring | Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value		815,781
Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	0	1,894
Financial liabilities
Total derivative liabilities	0	0
Level 3 | Recurring
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	0	1,894
Financial liabilities
Total derivative liabilities	0	0
Level 3 | Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Level 3 | Recurring | Interest rate swap contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Level 3 | Recurring | Equity warrants
Financial assets
Total derivative assets		1,894
Level 3 | Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 3 | Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 3 | Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Level 3 | Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	$ 0	0
Level 3 | Recurring | Mortgage-backed securities
Financial assets
Investment securities available-for-sale, at fair value		0
Fair Value Measured at Net Asset Value Per Share | Recurring
Financial assets
Equity securities		$ 12,600