Income Taxes - Summary of Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, Beginning balance	$ 1,202	$ 856	$ 856
Additions for tax positions related to prior years	9	398
Additions for tax positions related to current year	0	0	0
Reductions for tax positions of prior years	(355)	(52)
Settlements	(33)
Unrecognized tax benefits, Ending balance	$ 823	$ 1,202	$ 856

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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