Subordinated Notes (Narrative) (Details)	9 Months Ended
Sep. 30, 2020 USD ($)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Subordinate notes	$ 19,547,000
Debt issuance costs	$ 452,900,000
Redemption period	5 years
Minimum [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Amortization period	5 years
Maximum [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Amortization period	10 years
Maturing September 1, 2030 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Subordinate notes	$ 15,000,000.0
Maturing September 1, 2035 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Subordinate notes	5,000,000.0
Through September 1, 2025 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Subordinate notes	$ 15,000,000.0
Interest rate	5.00%
After September 1, 2025 [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Basis spread on variable rate	4.93%
Through September 1, 2030 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Subordinate notes	$ 5,000,000.0
Interest rate	5.25%
After September 1, 2030 [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Basis spread on variable rate	4.92%

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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+ References

No definition available.

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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