Federal Home Loan Bank Advances (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2020
Federal Home Loan Bank, Advances, Branch of FHLB [Line Items]
Convertible Debt	$ 50,000
Convertible advances weighted average interest rate	1.56%
Carrying value of the loans pledged	$ 222,406	$ 50,000
Short term advances outstanding	$ 170,000	$ 0
Weighted average interest rate on short term advances	1.73%	0.00%
Collateral used to secure confirming letters of credit		$ 6,000
Weighted Rate
Federal Home Loan Bank, Advances, Maturities Summary, One to Five Years	$ 52,406	$ 50,000
Federal Home Loan Bank Advances, Maturities Summary, Average Interest Rate of Amounts Due in One to Five Years of Balance Sheet Date	1.62%	1.56%
Federal Home Loan Bank, Advances, Maturities Summary, Average Interst Rate of Amounts	1.70%	1.56%
Des Moines
Federal Home Loan Bank, Advances, Branch of FHLB [Line Items]
Carrying value of the loans pledged	$ 1,600,000	$ 1,400,000
Availability under the secured line of credit		$ 739,100

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Federal Home Loan Bank Advances, Maturities Summary, Average Interest Rate of Amounts Due in One to Five Years of Balance Sheet Date

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Federal Home Loan Bank, Advances, Maturities Summary, Average Interst Rate of Amounts

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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The weighted average interest rate applicable to the Federal Home Loan Bank advances which are due within one year of the Balance Sheet date.

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Amount of Federal Home Loan Bank (FHLB) advances maturing between the next fiscal year and the fifth fiscal year following the latest fiscal year.

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Amount of advances from Federal Home Loan Bank (FHLBank) maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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