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Leases - Schedule of Maturities of Operating Lease Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Operating Lease Liabilities, Payments Due After Adoption of 842 [Abstract]    
2019 $ 6,428  
2020 8,713  
2021 2,855  
2022 425  
Total 18,421  
Less: Imputed Interest (408)  
Present value of lease liabilities 18,013  
Operating lease liability, current 14,151 $ 0
Operating lease liability, noncurrent $ 3,862 0
Drilling Rigs    
Operating Leases, Future Contractual Payments Before Adoption of 842    
2019   43,036
2020   4,124
2021   0
2022   0
Total lease payments   47,160
Office Leases    
Operating Leases, Future Contractual Payments Before Adoption of 842    
2019   3,057
2020   2,830
2021   2,761
2022   404
Total lease payments   $ 9,052