Pre-tax Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pre-tax Income [Line Items]
Pre-tax income from US operations									$ 231,372	$ 104,707	$ 169,706
Pre-tax income from foreign operations									867,756	840,338	800,967
Income Before Income Taxes	$ 461,891	$ 514,343	$ 78,729	$ 44,165	$ 356,669	$ 466,847	$ 111,361	$ 10,168	$ 1,099,128	$ 945,045	$ 970,673