Income Taxes - Income Tax Expense (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
Current:
U.S. Federal									$ 27,782	$ 25,319	$ 18,410
U.S. State and local									2,662	2,436	1,113
Foreign									9,614	15,172	17,379
Total current income tax expense									40,058	42,927	36,902
Deferred:
U.S. Federal									4,039	7,785	4,440
U.S. State and local									921	(823)	2,042
Foreign									(1,515)	2,016	(1,930)
Total deferred income tax expense									3,445	8,978	4,552
Income tax expense	$ 13,458	$ 9,135	$ 17,410	$ 3,500	$ 14,008	$ 9,349	$ 18,937	$ 9,611	$ 43,503	$ 51,905	$ 41,454