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Leases - Position Costs (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Dec. 31, 2018
Assets [Abstract] |  |  |
Right of use assets | $ 37,457 | $ 37,457 |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | us-gaap:OtherCurrentAssets | us-gaap:OtherCurrentAssets |
Lease Assets | $ 37,457 | $ 37,457 |
Liabilities, Current [Abstract] |  |  |
Operating lease liability, current | $ 13,570 | $ 13,570 |
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | nbr:CurrentLeaseLiabilities | nbr:CurrentLeaseLiabilities |
Liabilities, Noncurrent [Abstract] |  |  |
Operating lease liability, noncurrent | $ 23,887 | $ 23,887 |
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent |
Lease, Cost [Abstract] |  |  |
Operating lease cost | $ 4,007 | $ 11,657 |
Short-term lease cost | 741 | 1,893 |
Variable lease cost | 217 | 464 |
Total lease cost | 4,965 | 14,014 |
Other Information [Abstract] |  |  |
Operating cash flows for operating leases |  | 11,657 |
Operating leases | $ 4,661 | $ 4,661 |
Lease Terms And Discount Rates [Abstract] |  |  |
Weighted-average remaining lease term - operating leases | 5 years 3 months 21 days | 5 years 3 months 21 days |
Weighted-average discount rate - operating leases | 5.61% | 5.61% |
Undiscounted Cash Flows [Abstract] |  |  |
2019 | $ 4,275 | $ 4,275 |
2020 | 14,014 | 14,014 |
2021 | 8,639 | 8,639 |
2022 | 5,435 | 5,435 |
2023 | 3,208 | 3,208 |
Thereafter | 8,004 | 8,004 |
Total undiscounted lease liability | 43,575 | 43,575 |
Less: amount of lease payments representing interest | (6,118) | (6,118) |
Lease liability | 37,457 | 37,457 |
Operating Lease, Liability, Current | 13,570 | 13,570 |
Operating lease liability, noncurrent | 23,887 | 23,887 |
Minimum rental commitments under non cancellable operating leases |  |  |
2019 |  |  | $ 10,701
2020 |  |  | 7,104
2021 |  |  | 3,774
2022 |  |  | 2,356
2023 |  |  | 1,538
Thereafter |  |  | 7,482
Total |  |  | $ 32,955
Adjustment | Accounting Standards Update 2016-02 |  |  |
Assets [Abstract] |  |  |
Right of use assets | 42,800 | 42,800 |
Undiscounted Cash Flows [Abstract] |  |  |
Lease liability | $ 42,800 | $ 42,800 |

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