Fair Value Measurements - Schedule of Fair Value of Derivative Assets and Liabilities (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Level 1 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | $ 0 | $ 0 |
| Derivative liabilities | 0 | 0 |
| Level 2 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 936 | 1,632 |
| Derivative liabilities | 10,849 | 6,051 |
| Level 3 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 0 | 0 |
| Derivative liabilities | $ 0 | $ 0 |