Equity Investments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Net Investment Income [Line Items]
Equity investments with readily determinable fair value	$ 42,396	$ 57,860	$ 42,396	$ 57,860
Proceeds from Sale of Equity Securities, FV-NI			20,600
Realized gain (loss) recorded on equity investments sold			1,354	0
Equity investments without readily determinable fair values	38,100	31,037	38,100	31,037
Equity investments without readily determinable fair values, impairment	0	0	0	0
Mutual funds
Net Investment Income [Line Items]
Equity investments with readily determinable fair value	4,300	26,800	4,300	26,800
Correspondent bank stock
Net Investment Income [Line Items]
Equity investments without readily determinable fair values	370	370	370	370
CDFI investments
Net Investment Income [Line Items]
Equity investments without readily determinable fair values	1,000	1,000	1,000	1,000
CRA investments
Net Investment Income [Line Items]
Equity investments without readily determinable fair values	$ 36,700	$ 29,700	$ 36,700	$ 29,700

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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