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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Nominal or face amount used to calculate payment on derivative.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Financial Instruments and Fair Value Measurements - Summary of Activity in Interest Rate Swaps (Parenthetical) (Detail) $ in Thousands, € in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($) Contract	Mar. 31, 2020 USD ($) Contract	Sep. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) Contract	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Mar. 31, 2020 EUR (€)
Derivative [Line Items]
Loss on derivatives	$ (2,379)		$ 616		$ 19,696	$ 6,974
Interest Rate Swaps [Member] \| Senior Notes [Member] \| EUR
Derivative [Line Items]
Number of Contracts \| Contract		1		2
Notional value of derivative		$ 165,000		$ 250,000			€ 150.0
Interest rate description		Euribor plus 0.3%		USD LIBOR plus 0.9%
Interest rate		0.30%		0.90%
Treasury Lock Contracts [Member] \| Senior Notes [Member] \| USD
Derivative [Line Items]
Number of Contracts \| Contract	2	4
Notional value of derivative	$ 500,000	$ 750,000			500,000
Loss on derivatives		$ 16,800			$ 16,800