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Securities, HTM Debt Securities, Contractual Maturities (Details) $ in Thousands	Sep. 30, 2022 USD ($) Issuer	Dec. 31, 2021 USD ($) Issuer
Held-to-maturity Securities, Debt Maturities, Amortized Cost [Abstract]
Within one year	$ 56,687
From one to five years	77,429
From five to ten years	291,847
After ten years	503,578
Amortized cost	929,541	$ 733,210
Held-to-maturity Securities, Debt Maturities, Estimated Fair Value [Abstract]
Within one year	56,676
From one to five years	74,329
From five to ten years	253,807
After ten years	429,288
Fair value	$ 814,100	$ 735,260
Number of issuers whose holdings exceeded 10% of consolidated stockholders' equity, excluding U.S. Government securities and Government-sponsored enterprises securities | Issuer	0	0

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