Derivatives (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 17, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Percentage of swaps designated as cash flow hedges	95.00%		95.00%
Prepaid expenses and other current assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward currency contract asset fair value	$ 100,000		$ 100,000			$ 200,000
Other accrued expenses
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Forward currency contract liability fair value	300,000		300,000			700,000
Other income (expense), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain (loss) reclassified from other comprehensive loss into income	(15,800,000)	$ 0	(16,500,000)	$ 0
Interest Rate Swap Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount					$ 250,000,000.0
Interest Rate Swap Contracts | Interest expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain (loss) reclassified from other comprehensive loss into income	(4,700,000)	1,200,000	(7,800,000)	8,700,000
Amount to be reclassified to Statement of Operations within the next 12 months			(18,500,000)
Interest Rate Swap Contracts | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	1,050,000,000.0		1,050,000,000.0			1,050,000,000.0
Interest Rate Swap Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	200,000,000.0		$ 200,000,000.0			200,000,000.0
Cross-currency swap contracts | Minimum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Debt instrument, term			1 month
Cross-currency swap contracts | Maximum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Debt instrument, term			3 months
Cross-currency swap contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	90,900,000		$ 90,900,000			141,400,000
Cross Currency Interest Rate Contract | Interest expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain (loss) reclassified from other comprehensive loss into income	400,000	$ 0	3,100,000	$ 0
Amount to be reclassified to Statement of Operations within the next 12 months			1,400,000
Cross Currency Interest Rate Contract | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	381,000,000.0		381,000,000.0			381,000,000.0
Cross Currency Interest Rate Contract | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 19,000,000.0		$ 19,000,000.0			$ 19,000,000.0