Interest Rate Swaps - Amounts and Locations of Activity Related to Interest Rate Swaps Designated as Cash Flow Hedges (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Amount of gain recognized in other comprehensive loss on derivative (effective portion)	$ (32)	$ 194	$ 180
Accrued interest payable and other liabilities
Derivative [Line Items]
Interest rate contract	(201)	(161)
Interest expense – subordinated debentures
Derivative [Line Items]
Amount of loss reclassified from accumulated other comprehensive loss into income (effective portion)	(164)	(288)	(340)
Other income
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	$ 0	$ 0	$ 0

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

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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.

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References

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-Publisher FASB
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-Topic 220
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