Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Current derivative asset	$ 44,261	$ 32,100
Total derivative instruments	44,261
Current derivative liability	4,866	$ 20,692
Total derivative instruments	4,866
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Current derivative asset	44,261
Total derivative instruments	44,261
Current derivative liability	4,866
Total derivative instruments	$ 4,866