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Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Apr. 01, 2021	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Contract assets, current	$ 14,098			$ 13,842
Contract assets, long term	9,670			11,415
Impairment loss of contract assets	149	$ 468
ASC 606
Disaggregation Of Revenue [Line Items]
Deferred revenue	2,700
ASC 606 \| Other Assets - Current
Disaggregation Of Revenue [Line Items]
Contract assets, current	14,100			13,800
ASC 606 \| Other Assets Noncurrent
Disaggregation Of Revenue [Line Items]
Contract assets, long term	$ 9,700			$ 11,400
Subsequent Event
Disaggregation Of Revenue [Line Items]
Revenue, remaining performance obligation			$ 380,400