Schedule of Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Long-term borrowings	$ 822,338	$ 786,576
Less current portion	6,776	7,335
Total long-term borrowings	815,562	779,241
4.2% Senior Notes
Debt Instrument [Line Items]
Long-term borrowings	349,216	349,197
4.5 % Senior Notes
Debt Instrument [Line Items]
Long-term borrowings	298,723	298,689
2.58% Senior Euro Notes
Debt Instrument [Line Items]
Long-term borrowings	103,664	107,042
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Facility	61,000	21,000
Other Borrowings
Debt Instrument [Line Items]
Other borrowings	$ 9,735	$ 10,648