Schedule of Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Long-term borrowings	$ 759,341	$ 808,810
Less current portion	5,616	2,444
Total long-term borrowings	753,725	806,366
4.2% Senior Notes
Debt Instrument [Line Items]
Long-term borrowings	349,161	349,125
4.5 % Senior Notes
Debt Instrument [Line Items]
Long-term borrowings	298,621	298,555
2.58% Senior Euro Notes
Debt Instrument [Line Items]
Long-term borrowings	100,918	104,655
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Facility		50,798
Other Borrowings
Debt Instrument [Line Items]
Long-term borrowings	$ 10,641	$ 5,677