Securities Available for Sale - Continuous loss (Details) $ in Thousands	Dec. 31, 2021 USD ($) position	Dec. 31, 2020 USD ($) position
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months	$ 190,246	$ 26,678
Unrealized losses, less than 12 months	(3,744)	(855)
Fair value, 12 months or longer	0	6,052
Unrealized losses, 12 months or longer	0	(118)
Fair Value	190,246	32,730
Unrealized Losses	$ (3,744)	$ (973)
Number of positions with unrealized losses \| position	145	55
U.S. agency residential mortgage-backed securities
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months	$ 123,668
Unrealized losses, less than 12 months	(2,286)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair Value	123,668
Unrealized Losses	(2,286)
U.S. agency securities
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months	24,175
Unrealized losses, less than 12 months	(731)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair Value	24,175
Unrealized Losses	(731)
Other asset-backed securities
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months	13,224
Unrealized losses, less than 12 months	(130)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair Value	13,224
Unrealized Losses	(130)
Commercial mortgage-backed securities
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months	25,927
Unrealized losses, less than 12 months	(552)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair Value	25,927
Unrealized Losses	(552)
Municipal securities
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months	3,252
Unrealized losses, less than 12 months	(45)
Fair value, 12 months or longer	0
Unrealized losses, 12 months or longer	0
Fair Value	3,252
Unrealized Losses	$ (45)
Asset-backed securities related to Structured Program transactions
Schedule of Securities Available-for-Sale [Line Items]
Fair value, less than 12 months		$ 26,678
Unrealized losses, less than 12 months		(855)
Fair value, 12 months or longer		6,052
Unrealized losses, 12 months or longer		(118)
Fair Value		32,730
Unrealized Losses		$ (973)

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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