Accounts Payable and Other Accrued Liabilities - Summary of Accounts Payable and Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Payables And Accruals [Abstract]
Accounts payable	$ 12,255	$ 15,034
Accrued expenses	9,931	10,733
Contract liabilities	7,736	3,314
Other current liabilities	303	504
Total accounts payable and other accrued liabilities	$ 30,225	$ 29,585