Schedule of Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Total borrowings	$ 863,952us-gaap_LongTermDebt	$ 773,876us-gaap_LongTermDebt
Less current portion	98,946us-gaap_LongTermDebtCurrent	1,871us-gaap_LongTermDebtCurrent
Total long-term borrowings	765,006us-gaap_LongTermDebtNoncurrent	772,005us-gaap_LongTermDebtNoncurrent
Other Borrowings
Debt Instrument [Line Items]
Other borrowings	2,170	4,271
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Facility	115,000	10,000
4.2% Senior Notes, due December 2021
Debt Instrument [Line Items]
Total borrowings	349,351	349,272
4.5% Senior Notes, due December 2020
Debt Instrument [Line Items]
Total borrowings	298,975	298,828
2.58% Senior Euro Notes, due June 2015
Debt Instrument [Line Items]
Total borrowings	$ 98,456	$ 111,505

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