Investment Securities - Gross Unrealized Losses on Available-for-sale Securities and the Related Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 364,167	$ 327,268
Less than 12 months, unrealized losses	(15,724)	(4,111)
More than 12 months, fair value	72,868	21,743
More than 12 months, unrealized losses	(4,652)	(355)
Fair Value	437,035	349,011
Unrealized Losses	(20,376)	(4,466)
U.S. Treasury and government sponsored entities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	301,435	292,845
Less than 12 months, unrealized losses	(14,981)	(4,012)
More than 12 months, fair value	72,868	21,743
More than 12 months, unrealized losses	(4,652)	(355)
Fair Value	374,303	314,588
Unrealized Losses	(19,633)	(4,367)
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	7,838	4,953
Less than 12 months, unrealized losses	(377)	(77)
More than 12 months, fair value	0	0
More than 12 months, unrealized losses	0	0
Fair Value	7,838	4,953
Unrealized Losses	(377)	(77)
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	54,079	29,470
Less than 12 months, unrealized losses	(361)	(22)
More than 12 months, fair value	0	0
More than 12 months, unrealized losses	0	0
Fair Value	54,079	29,470
Unrealized Losses	(361)	$ (22)
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	815
Less than 12 months, unrealized losses	(5)
More than 12 months, fair value	0
More than 12 months, unrealized losses	0
Fair Value	815
Unrealized Losses	$ (5)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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