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, 2021 USD ($)
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at December 31, 2020	$ (13,836)
Total losses included in earnings	(1,227)
Settlements, net	3,299
Transfers in and/or out of Level 3	0
Balance at March 31, 2021	$ (11,764)