Fair Value Measurements (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 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 |
| 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.
|