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.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Debt - Long-Term Debt Maturities (Parenthetical) (Detail) € in Millions, $ in Millions	1 Months Ended		12 Months Ended
	Jan. 31, 2020 USD ($)	Jan. 31, 2020 EUR (€)	Dec. 31, 2019
Debt Instrument [Line Items]
Debt instruments expected maturing period			next twelve months
Subsequent Events [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt instruments redeemed amount	$ 445.9	€ 400