Commitments and Contingencies - Self Insurance Disclosures (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2017
USD ($)
| |
| Self-Insurance disclosures | |
| Employer's liability claims subject to per-occurrence deductible | $ 3.0 |
| Workers automobile claims | 2.5 |
| General liability claims subject to per-occurrence deductible | 5.0 |
| Deductions in land rigs and for offshore rigs | 5.0 |
| Latin American tax authority | Minimum | |
| Income tax | |
| Aggregate remaining amounts assessed or expected to assessed range | 3.0 |
| Latin American tax authority | Maximum | |
| Income tax | |
| Aggregate remaining amounts assessed or expected to assessed range | $ 8.0 |