Quarterly report pursuant to Section 13 or 15(d)

Accounts Payable and Accrued Liabilities - Schedule of Components of Accounts Payable and Accrued Liabilities (Detail)

v3.8.0.1
Accounts Payable and Accrued Liabilities - Schedule of Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Payables and Accruals [Abstract]    
Project development activities $ 1,970 $ 0
Front-end engineering and design 0 12,549
Payroll and compensation 16,043 6,311
Seismic survey cancellation 1,343 0
Accrued taxes 2,394 0
Professional services (e.g., legal, audit) 2,869 2,323
Other 2,570 3,220
Total accounts payable and accrued liabilities $ 27,189 $ 24,403