Accumulated Other Comprehensive Income - Components and Activity in Accumulated Other Comprehensive Income Net of Deferred Income Taxes (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
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Foreign Currency Translation, Beginning balance	$ 111,424		$ 50,904		$ 116,465		$ 85,117
Foreign Currency Translations, Other comprehensive (loss) income before reclassifications	(804)		5,241		(6,062)		(28,668)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	0		0		0		0
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	(804)		5,241		(6,062)		(28,668)
Foreign Currency Translation, Other comprehensive (income) loss attributable to noncontrolling interests	61		233		278		(71)
Foreign Currency Translation, Ending balance	110,681		56,378		110,681		56,378
Pension and Post-retirement Benefits, Beginning balance	186		915		487		989
Pension and Post-retirement Benefits, Amounts reclassified from accumulated other comprehensive income	(167)	[1]	(330)	[1]	(468)	[1]	(404)	[1]
Pension and Post-retirement Benefits, Other comprehensive (loss) income, net of tax	(167)		(330)		(468)		(404)
Pension and Post-retirement Benefits, Ending balance	19		585		19		585
Unrealized loss on interest rate swap, beginning balance	(4,011)		0		0		0
Interest Rate Swap, Other comprehensive income (loss) before reclassifications	(6,410)		0		(10,421)		0
Unrealized loss on interest rate swap, Other comprehensive (loss) income, net of tax	(6,410)		0		(10,421)		0
Unrealizedd loss on interest rate swap, ending balance	(10,421)		0		(10,421)		0
Other, Beginning balance	(672)		(810)		(707)		(842)
Other, Other comprehensive (loss) income before reclassifications	3		(3)		3		(5)
Other, Amounts reclassified from accumulated other comprehensive income	34		32		69		66
Other, Other comprehensive (loss) income, net of tax	37		29		72		61
Other, Ending balance	(635)		(781)		(635)		(781)
Beginning Balance	106,927		51,009		116,245		85,264
Other comprehensive income (loss) before reclassifications	(7,211)		5,238		(16,480)		(28,673)
Amounts reclassified from accumulated other comprehensive income	(133)		(298)		(399)		(338)
Total other comprehensive (loss) income, net of tax	(7,344)		4,940		(16,879)		(29,011)
Other comprehensive (income) loss attributable to noncontrolling interests	61		233		278		(71)
Ending balance	$ 99,644		$ 56,182		$ 99,644		$ 56,182

[1] Amounts reclassified from accumulated other comprehensive income consist of amortization of prior service benefit. See Note 10, “Pension Plans and Other Postretirement Benefits.”