Summary of Significant Accounting Policies - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Accounts receivable	$ 78,214	$ 113,148
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	78,214	113,148
Customer Contracts
Accounting Policies [Abstract]
Accounts receivable	71,022	107,804
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	71,022	107,804
Other Receivables
Accounting Policies [Abstract]
Accounts receivable	7,192	5,344
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 7,192	$ 5,344