Restructuring - Summary of Amounts Recorded for Restructuring Plans (Detail) (USD $) In Thousands, unless otherwise specified												12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 2012 Plan [Member]	Dec. 31, 2012 2012 Plan [Member]	Dec. 31, 2012 2011 Plan [Member]	Dec. 31, 2011 2011 Plan [Member]	Dec. 31, 2013 Restructuring Prior Year Plans [Member]	Dec. 31, 2012 Restructuring Prior Year Plans [Member]	Dec. 31, 2011 Restructuring Prior Year Plans [Member]	Dec. 31, 2013 2013 Plan [Member]	Dec. 31, 2013 Severance and Related Costs [Member]	Dec. 31, 2012 Severance and Related Costs [Member]	Dec. 31, 2013 Severance and Related Costs [Member] 2012 Plan [Member]	Dec. 31, 2012 Severance and Related Costs [Member] 2012 Plan [Member]	Dec. 31, 2012 Severance and Related Costs [Member] 2011 Plan [Member]	Dec. 31, 2013 Severance and Related Costs [Member] Restructuring Prior Year Plans [Member]	Dec. 31, 2012 Severance and Related Costs [Member] Restructuring Prior Year Plans [Member]	Dec. 31, 2013 Severance and Related Costs [Member] 2013 Plan [Member]	Dec. 31, 2013 Exit Costs [Member]	Dec. 31, 2012 Exit Costs [Member]	Dec. 31, 2013 Exit Costs [Member] 2012 Plan [Member]	Dec. 31, 2012 Exit Costs [Member] 2011 Plan [Member]	Dec. 31, 2013 Exit Costs [Member] Restructuring Prior Year Plans [Member]	Dec. 31, 2012 Exit Costs [Member] Restructuring Prior Year Plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserves, opening balance	$ 5,474	$ 12,784	$ 14,860	$ 1,733	$ 11,220	$ 1,234	$ 12,522	$ 516	$ 330	$ 2,338	$ 3,225
Expense, Net of Reversals												13,718	17,828	(263)	19,997	(1,901)	(251)	(268)	14,232	353	913	377	941	(24)	(28)
Payments												(21,324)	(15,904)	(9,450)	(9,028)	(5,149)	(744)	(1,727)	(11,130)	(154)	(5,304)	(111)	(5,304)	(43)
Foreign Currency Translation												98	318	(40)	251	52	15	15	123	(1)	73		73	(1)
Restructuring reserves, ending balance	$ 5,474	$ 12,784	$ 14,860	$ 1,733	$ 11,220	$ 1,234	$ 12,522	$ 516	$ 330	$ 2,338	$ 3,225