Debt Securities Held to Maturity - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) security	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) security	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) security
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 425,077,000		$ 425,077,000		$ 429,734,000
Fair Value	373,494,000		373,494,000		434,789,000
Proceeds from sale and maturity of held-to-maturity securities	0	$ 0	0	$ 0
Proceeds from calls of debt securities, held-to-maturity		$ 0		5,100,000
Debt securities, held-to-maturity, sold, realized gain (loss)				$ 0
Fair value of securities sold under agreements to repurchase	$ 230,900,000		$ 230,900,000		$ 252,400,000
Number of positions | security	117		117		25
Accrued interest receivable on debt securities held-to-maturity	$ 820,000		$ 820,000
Mortgage-backed securities and collateralized mortgage obligations
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	375,206,000		375,206,000		$ 384,864,000
Fair Value	$ 331,210,000		$ 331,210,000		$ 390,678,000