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Fair Value Measurements - Reconciliation of the Beginning and Ending Balances for Derivative Instruments Classified as Level 3 in the Fair Value Hierarchy (Detail) - Fair Value, Inputs, Level 3
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Balance at December 31, 2019 $ (4,848)
Total gains included in earnings 132
Settlements, net 490
Balance at March 31, 2020 $ (4,226)