Restructuring - Summary of Activity of Restructuring (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance					$ 4,886
Restructuring	1,907	10,171	7,755	15,758
Restructuring Reserve, Ending Balance					4,886
Restructuring activities prior years [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			2,115
Restructuring			2,718
Cash payments and foreign exchange translation			(2,209)
Utilization of reserve			(1,110)
Restructuring Reserve, Ending Balance	1,514		1,514
Restructuring activities 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			13,507
Restructuring	349	9,007	3,102	14,263
Cash payments and foreign exchange translation			(14,673)
Restructuring Reserve, Ending Balance	1,936		1,936
Employee Separation Costs [Member] | Restructuring activities prior years [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			2,054
Restructuring			299
Cash payments and foreign exchange translation			(903)
Utilization of reserve
Restructuring Reserve, Ending Balance	1,450		1,450
Employee Separation Costs [Member] | Restructuring activities 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			13,507
Restructuring	108	8,797	2,724	14,053
Cash payments and foreign exchange translation			(14,295)
Restructuring Reserve, Ending Balance	1,936		1,936
Other exit costs [Member] | Restructuring activities prior years [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			61
Restructuring			1,309
Cash payments and foreign exchange translation			(1,306)
Utilization of reserve
Restructuring Reserve, Ending Balance	64		64
Other exit costs [Member] | Restructuring activities 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance
Restructuring	241	210	378	210
Cash payments and foreign exchange translation			(378)
Restructuring Reserve, Ending Balance
Asset Impairments [Member] | Restructuring activities prior years [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance
Restructuring			1,110
Cash payments and foreign exchange translation
Utilization of reserve			(1,110)
Restructuring Reserve, Ending Balance
Asset Impairments [Member] | Restructuring activities 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance
Restructuring
Cash payments and foreign exchange translation
Restructuring Reserve, Ending Balance