Accounts Payable and Other Accrued Liabilities - Summary of Accounts Payable and Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Payables And Accruals [Abstract]
Accounts payable	$ 13,360	$ 15,034
Accrued expenses	10,395	10,733
Other purchase obligations	572
Contract liabilities	9,335	3,314
Other current liabilities	235	504
Total accounts payable and other accrued liabilities	$ 33,897	$ 29,585