Borrowings	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Borrowings	BorrowingsThe Bank had outstanding secured advances from the FHLB at December 31, 2021 and 2020 with carrying values of $6.3 million and $771.5 million, respectively. The maximum amount outstanding from the FHLB under term advances at a month end during 2021 and 2020 was $645.0 million and $1.2 billion, respectively. The average balance outstanding during 2021 and 2020 was $194.6 million and $1.0 billion, respectively. The average contractual interest rate on the borrowings was 7.1% in 2021 and 1.2% in 2020. At December 31, 2021, the remaining FHLB advance matures in 2030. The FHLB requires the Bank to maintain a required level of investment in FHLB and sufficient collateral to qualify for secured advances. The Bank has pledged as collateral for these secured advances all FHLB stock, all funds on deposit with the FHLB, investment and commercial real estate portfolios, accounts, general intangibles, equipment and other property in which a security interest can be granted by the Bank to the FHLB.