Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivatives	$ (5,736,000)	$ 40,364,000	$ (21,459,000)
Amount of Loss Reclassified from Accumulated OCI into Income	195,000	563,000	(831,000)
Net Investment [Member] | Foreign Currency Contracts [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivatives	(5,592,000)	40,372,000	(22,216,000)
Cash Flow Hedges [Member] | Interest Rate Swaps/Derivatives [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivatives	(144,000)	(8,000)	757,000
Amount of Loss Reclassified from Accumulated OCI into Income	$ 195,000	$ 563,000	$ (831,000)