Fair Value Measurements - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value measurements, inter-transfers between levels	$ 0	$ 0
Net changes in the fair value of contingent consideration	(629,000)	1,599,000	$ 2,617,000
Other income (expense), net
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Net changes in the fair value of contingent consideration	$ 600,000	$ (1,600,000)	$ 2,600,000