Accounts Receivable and Revenues from Contracts with Customers - Additional Information (Details) - Accounts Receivable $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($) Customer	Jun. 30, 2020 USD ($) Customer	Dec. 31, 2020 USD ($)
Credit Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, major customers	$ 43,800		$ 24,100
Credit Concentration Risk | Name of Major Customer [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	68.00%		61.00%
Customer Concentration Risk [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of major customers | Customer	3	4
Major Customer Revenues	$ 98,500	$ 99,200
Customer Concentration Risk [Member] | Name of Major Customer [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	46.00%	73.00%
Customer Concentration Risk [Member] | Major Customer 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	16.00%
Major Customer Revenues	$ 34,700
Customer Concentration Risk [Member] | Major Customer 2
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	16.00%
Major Customer Revenues	$ 33,400
Customer Concentration Risk [Member] | Major Customer 3
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	14.00%
Major Customer Revenues	$ 30,400