Share-Based Awards and Cash-Based Awards - Summary of Compensation Expense Related to Share-Based Awards and Cash-Based Awards (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
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| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
| Share-based compensation charged to operating income | $ 1,215 | $ 2,412 | $ 2,434 | $ 4,340 |
| Total charged to operating income | 3,149 | 3,810 | 7,900 | 5,738 |
| General And Administrative Expense | ||||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
| Share-based compensation charged to operating income | 1,215 | 2,412 | 2,434 | 4,340 |
| Cash-based incentive compensation charged to operating income | 1,391 | 1,004 | 4,063 | 1,004 |
| Lease Operating Expense | ||||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
| Cash-based incentive compensation charged to operating income | $ 543 | $ 394 | $ 1,403 | $ 394 |
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- 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.
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- Definition Cash-based incentive compensation charged to operating income (loss). No definition available.
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- Definition Total incentive compensation charged to operating income, which includes share-based incentive compensation and cash-based incentive compensation. No definition available.
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- Definition Share-based compensation paid in shares and cash. No definition available.
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