Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Contract assets	$ 15,700		$ 12,800
Customer deposits	9,843		8,144
Revenue remaining performance obligation	$ 2,400		$ 3,200
Multi-family or Commercial Arrangements \| Revenue Benchmark \| Product Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	4.80%	2.80%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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