Business Combination - Summary of Changes to Contingent Consideration Payable (Details) - HGE - Level 3 $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Business Acquisition Contingent Consideration [Line Items]
Balance at December 31, 2020	$ 13,187
Change in value of contingent consideration based on correction of purchase price calculation	(2,258)
Change in fair value of contingent consideration	202
Balance at March 31, 2021	$ 11,131