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Long Term Borrowings - Narrative (Details) - USD ($)				3 Months Ended
	Aug. 02, 2021	Jul. 26, 2016	Aug. 05, 2014	Mar. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Feb. 26, 2020
Long-Term Borrowings
Payments of debt issuance costs	$ 1,300,000
Subordinated Notes, 5.75%
Long-Term Borrowings
Face amount			$ 70,000,000
Interest rate (as a percent)			5.75%		5.75%
Net proceeds from issuance of subordinated long-term debt			$ 68,800,000
Payments of debt issuance costs			$ 1,200,000
Long-term borrowings					$ 70,000,000	$ 70,000,000
Subordinated Notes, 5.0%
Long-Term Borrowings
Face amount		$ 150,000,000
Interest rate (as a percent)		5.00%			5.00%
Net proceeds from issuance of subordinated long-term debt		$ 147,400,000
Payments of debt issuance costs		$ 2,600,000
Long-term borrowings					$ 0	150,000,000
FHLB Advance, 1.81%
Long-Term Borrowings
Interest rate (as a percent)					1.81%		1.81%
Long-term borrowings					$ 0	$ 50,000,000	$ 50,000,000
Gain on cancellation of debt				$ 911,000

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.

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