Securities - Securities Available for Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 521,337	$ 409,110
Unrealized gains	2,853	4,798
Unrealized losses	(7,327)	(4,199)
Fair value	516,863	409,709
U.S. Gov’t sponsored entities
Debt Securities, Available-for-sale [Line Items]
Amortized cost	134,010	108,578
Unrealized gains	254	478
Unrealized losses	(1,570)	(908)
Fair value	132,694	108,148
State & political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized cost	134,662	134,428
Unrealized gains	1,942	3,609
Unrealized losses	(573)	(314)
Fair value	136,031	137,723
Residential & multi-family mortgage
Debt Securities, Available-for-sale [Line Items]
Amortized cost	209,126	111,214
Unrealized gains	500	304
Unrealized losses	(3,573)	(1,882)
Fair value	206,053	109,636
Corporate notes & bonds
Debt Securities, Available-for-sale [Line Items]
Amortized cost	12,356	17,610
Unrealized gains	22	52
Unrealized losses	(601)	(462)
Fair value	11,777	17,200
Pooled SBA
Debt Securities, Available-for-sale [Line Items]
Amortized cost	30,163	36,260
Unrealized gains	135	355
Unrealized losses	(924)	(575)
Fair value	29,374	36,040
Other
Debt Securities, Available-for-sale [Line Items]
Amortized cost	1,020	1,020
Unrealized gains	0	0
Unrealized losses	(86)	(58)
Fair value	$ 934	$ 962

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-SubTopic 10
-Section 50
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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Publisher FASB
-Name Accounting Standards Codification
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