Derivative Instruments and Hedging Strategies - Fair Value Carrying Amount of Derivatives (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative asset, fair value	$ 18,174	$ 33,592
Derivative liability, fair value	12,180	15,941
Level 2: | Derivatives Designated As Hedging Instruments
Derivative [Line Items]
Derivative asset, fair value	18,158	33,123
Derivative liability, fair value	12,110	13,677
Level 2: | Derivatives Designated As Hedging Instruments | Other current assets
Derivative [Line Items]
Derivative asset, fair value	13,537	19,584
Level 2: | Derivatives Designated As Hedging Instruments | Other assets
Derivative [Line Items]
Derivative asset, fair value	4,621	13,539
Level 2: | Derivatives Designated As Hedging Instruments | Accounts payable and accrued liabilities
Derivative [Line Items]
Derivative liability, fair value	7,704	8,184
Level 2: | Derivatives Designated As Hedging Instruments | Other long-term liabilities
Derivative [Line Items]
Derivative liability, fair value	4,406	5,493
Level 2: | Not Designated as Hedging Instrument | Other current assets
Derivative [Line Items]
Derivative asset, fair value	16	469
Level 2: | Not Designated as Hedging Instrument | Accounts payable and accrued liabilities
Derivative [Line Items]
Derivative liability, fair value	$ 70	$ 2,264