Other Comprehensive Income - Summary of Other Comprehensive Income and Tax Impact (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract]
Net unrealized gain on available-for-sale securities, net of income taxes	$ 632	$ 312	$ 45	$ 822
Net unrealized loss on interest rate swaps, net of income taxes	(1,007)	(730)	(1,660)	(1,157)
Foreign currency translation	(2)	(4)	(14)	(6)
Total other comprehensive loss	$ (377)	$ (422)	$ (1,629)	$ (341)

Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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