Borrowed Funds - Schedule of Other Borrowings (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Maturing September 30, 2026 \| Subordinated debt
Debt Instrument [Line Items]
Stated Value	$ 35,000
Carrying Value	$ 34,281
Debt instrument, interest rate, stated percentage	5.125%
Maturing September 30, 2026 \| Subordinated debt \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	392.00%
Maturing August 1, 2036 \| Trust preferred
Debt Instrument [Line Items]
Stated Value	$ 5,000
Carrying Value	$ 5,000
Maturing August 1, 2036 \| Trust preferred \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	165.00%
Maturing November 1, 2036 \| Trust preferred
Debt Instrument [Line Items]
Stated Value	$ 7,500
Carrying Value	$ 7,500
Maturing November 1, 2036 \| Trust preferred \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	166.00%
Maturing September 1, 2037 \| Trust preferred
Debt Instrument [Line Items]
Stated Value	$ 10,000
Carrying Value	$ 10,000
Maturing September 1, 2037 \| Trust preferred \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	175.00%
Maturing March 15, 2036 \| Trust preferred
Debt Instrument [Line Items]
Stated Value	$ 30,000
Carrying Value	$ 22,361
Maturing March 15, 2036 \| Trust preferred \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	135.00%
Maturing June 30, 2037 \| Trust preferred
Debt Instrument [Line Items]
Stated Value	$ 10,000
Carrying Value	$ 7,571
Maturing June 30, 2037 \| Trust preferred \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	153.00%
Maturing October 1, 2037 \| Trust preferred
Debt Instrument [Line Items]
Stated Value	$ 10,000
Carrying Value	$ 7,422
Maturing October 1, 2037 \| Trust preferred \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floating rate percentage	139.00%
Maturing August 30, 2025 \| Capital lease
Debt Instrument [Line Items]
Stated Value	$ 3,263
Carrying Value	$ 3,263
Debt instrument, interest rate, stated percentage	7.99%
Maturing June 30, 2029 \| Capital lease
Debt Instrument [Line Items]
Stated Value	$ 2,132
Carrying Value	$ 2,132
Debt instrument, interest rate, stated percentage	5.625%

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

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- Definition

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

+ References

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-Publisher FASB
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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-SubTopic 20
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