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FHLB Advances, Other Borrowings and Junior Subordinated Notes (Composition of Borrowed Funds) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 329,429 | $ 308,977
Borrowed Funds, Average Balance | $ 321,740 | $ 308,943
Borrowed funds, interest rate during period | 2.87% | 2.72%
Long-term borrowings |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 210,929 | $ 172,477
Short-term borrowings |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | 118,500 | 136,500
Federal funds purchased |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | 0 | 0
Borrowed Funds, Average Balance | $ 59 | $ 119
Borrowed funds, interest rate during period | 2.45% | 2.43%
FHLB advances |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 295,000 | $ 274,500
Borrowed Funds, Average Balance | $ 286,464 | $ 274,382
Borrowed funds, interest rate during period | 2.17% | 2.06%
Line of credit |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 0 | $ 0
Borrowed Funds, Average Balance | $ 0 | $ 3
Borrowed funds, interest rate during period | 0.00% | 4.47%
Other borrowings |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 675 | $ 675
Borrowed Funds, Average Balance | $ 675 | $ 675
Borrowed funds, interest rate during period | 8.11% | 7.94%
Subordinated notes payable(1) |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 23,707 | $ 23,769
Borrowed Funds, Average Balance | $ 24,502 | $ 23,739
Borrowed funds, interest rate during period | 7.45% | 6.64%
Junior subordinated notes |  |
Composition of Borrowed Funds [Line Items] |  |
Junior subordinated notes and other borrowings | $ 10,047 | $ 10,033
Borrowed Funds, Average Balance | $ 10,040 | $ 10,025
Borrowed funds, interest rate during period | 11.08% | 11.10%

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