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Derivative Instruments - Interest Rate Swaps Designated as Cash Flow Hedges (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Derivative [Line Items]
Amount of gain recognized in other comprehensive loss on derivative (effective portion), net of tax	$ 36	$ 46	$ 134	$ 141
Accrued interest and other liabilities
Derivative [Line Items]
Interest rate contract, fair value	9		9		$ (161)
Interest expense – subordinated debentures
Derivative [Line Items]
Amount of loss reclassified from accumulated other comprehensive loss into income (effective portion)	(44)	(71)	(149)	(220)
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	$ 0

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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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.

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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).

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