Accumulated Other Comprehensive Income - Amount of Income Tax (Expense) Benefit Allocated to Component of Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Equity [Abstract]
Foreign Currency Translation, Other comprehensive (loss) income, before tax	$ (613)	$ 4,470	$ (5,336)	$ (29,782)
Foreign Currency Translation, Income tax benefit (expense)	(191)	771	(726)	1,114
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	(804)	5,241	(6,062)	(28,668)
Pension and Post-retirement Benefits, Other comprehensive income (loss), before tax	(162)	(318)	(459)	(392)
Pension and Post-retirement Benefits, Income tax benefit (expense)	(5)	(12)	(9)	(12)
Pension and Post-retirement Benefits, Other comprehensive (loss) income, net of tax	(167)	(330)	(468)	(404)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(10,101)		(16,420)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	3,691		5,999
Unrealized loss on interest rate swap, Other comprehensive (loss) income, net of tax	(6,410)	0	(10,421)	0
Other, Other comprehensive (loss) income, before tax	57	49	111	101
Other, Income tax benefit (expense)	(20)	(20)	(39)	(40)
Other, Other comprehensive (loss) income, net of tax	$ 37	$ 29	$ 72	$ 61