Amounts recorded in AOCI related to cash flow hedging instruments (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Beginning balance	$ (71,358)		$ (143,730)
Foreign currency translation adjustment	72,159	83,283
Changes in fair value of foreign currency debt	14,531	10,097
Changes in fair value of derivative hedge instruments	(25,453)	(21,008)
Total activity	61,237	72,372
Ending balance	(10,121)	(71,358)	(143,730)
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Beginning balance	(17,481)		(12,737)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(6,234)	105
Reclassifications to earnings from equity	1,964	(4,849)
Total activity	(4,270)	(4,744)
Ending balance	$ (21,751)	$ (17,481)	$ (12,737)