Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	$ (16,096,000)	$ 18,973,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	(2,000)	(4,000)
Net Investment [Member] | Foreign Currency Contracts [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	(16,096,000)	18,974,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	0	0
Cash Flow Hedges [Member] | Interest Rate Swaps/Derivatives [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	0	(1,000)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	$ (2,000)	$ (4,000)