Fair Value Measurements (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Fair Value on Non-Recurring Basis | ||||
| Amount of transfers of assets and liabilities measured on a recurring and non-recurring basis between Levels 1, 2 and 3 of the fair value hierarchy | $ 0 | $ 0 | $ 0 | $ 0 |
| Senior Notes 5.625% | ||||
| Fair Value on Non-Recurring Basis | ||||
| Senior Notes, carrying value | 400,000 | 400,000 | ||
| Fair Value on Non-Recurring Basis | Level 1 fair value measurement | Senior Notes 5.625% | ||||
| Fair Value on Non-Recurring Basis | ||||
| Senior Notes, fair value | $ 385,000 | $ 385,000 | ||
| X | ||||||||||
- Definition Amount of transfers of assets and liabilities measured on a recurring and non-recurring basis between Levels 1, 2 and 3 of the fair value hierarchy. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Fair value portion of notes payable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|