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FHLB Advances, Other Borrowings and Junior Subordinated Notes Subordinated notes payable and junior subordinated notes payable (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Subordinated Borrowing [Line Items]
Junior subordinated notes and other borrowings	$ 429,229,000	$ 329,429,000
Unamortized Debt Issuance Cost, Subordinated Notes	343,000
Subordinated Debt
Subordinated Borrowing [Line Items]
Junior subordinated notes and other borrowings	23,747,000	$ 23,707,000
Maturity date August 15, 2029 | Subordinated Debt
Subordinated Borrowing [Line Items]
Junior subordinated notes and other borrowings	$ 15,000,000.0
Fixed rate	5.50%
Maturity date April 15, 2027 | Subordinated Debt
Subordinated Borrowing [Line Items]
Junior subordinated notes and other borrowings	$ 9,100,000
Fixed rate	6.00%

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+ References

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- Definition

Amount of short-term and long-term debt and lease obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
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- Definition

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

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-Topic 210
-SubTopic 10
-Section S99
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