Debt Securities Held to Maturity - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) security	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) security	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) security
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 415,333,000		$ 415,333,000		$ 421,523,000
Fair Value	364,111,000		364,111,000		370,391,000
Proceeds from sale and maturity of held-to-maturity securities	0	$ 0	0	$ 0
Fair value of securities sold under agreements to repurchase	$ 347,000,000		$ 347,000,000		$ 228,800,000
Number of positions | security	115		115		116
Accrued interest receivable on debt securities held-to-maturity	$ 987,000		$ 987,000		$ 1,000,000
Mortgage-backed securities and collateralized mortgage obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	365,462,000		365,462,000		371,652,000
Fair Value	$ 321,276,000		$ 321,276,000		$ 327,824,000