Description of Business and Basis of Presentation (Details) |
3 Months Ended |
|---|---|
Mar. 31, 2019 | |
| Drilling Rigs | |
| Lessee, Lease, Description [Line Items] | |
| Extension period notice | 30 days |
| Drilling Rigs | Minimum | |
| Lessee, Lease, Description [Line Items] | |
| Term of contract | 1 year |
| Drilling Rigs | Maximum | |
| Lessee, Lease, Description [Line Items] | |
| Term of contract | 2 years |
| Offices | Minimum | |
| Lessee, Lease, Description [Line Items] | |
| Term of contract | 2 years |
| Offices | Maximum | |
| Lessee, Lease, Description [Line Items] | |
| Term of contract | 5 years |
| X | ||||||||||
- Definition Lessee, Lease, Extension Period Notice No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|