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Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]
Unrealized losses on available for sale securities, income tax benefit	$ 183	$ 157
Unrealized gain on interest rate swaps, income tax expense	$ 213	$ 419

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- Definition

Accumulated Other Comprehensive Income Unrealized Holding Gain Loss On Derivatives Arising During Period Tax

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No definition available.

+ Details

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- Definition

Accumulated Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax

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No definition available.

+ Details

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No definition available.

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