Borrowed Funds - Summary of Junior Subordinated Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Junior subordinated debentures, gross	$ 50,619	$ 50,619
Purchase accounting adjustment, net of amortization	(13,544)	(13,666)
Total junior subordinated debentures	37,075	36,953
3 month LIBOR plus 2.85%, due 2033
Debt Instrument [Line Items]
Junior subordinated debentures, gross	30,000	30,000
3 month LIBOR plus 2.95%, due 2033
Debt Instrument [Line Items]
Junior subordinated debentures, gross	5,155	5,155
3 month LIBOR plus 1.75%, due 2037
Debt Instrument [Line Items]
Junior subordinated debentures, gross	$ 15,464	$ 15,464

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Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

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Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments, excluding current portion.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02.22)
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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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