Debt - Additional Information (Detail)	3 Months Ended				0 Months Ended			3 Months Ended		3 Months Ended
	Mar. 31, 2013 USD ($)	Mar. 31, 2012 USD ($)	Mar. 31, 2013 JPY (¥)	Dec. 31, 2012 USD ($)	Feb. 04, 2013 Bridge Loan [Member] USD ($)	Feb. 04, 2013 Bridge Loan [Member] JPY (¥)	Feb. 28, 2013 Bridge Loan [Member] USD ($)	Mar. 31, 2013 Global Facility [Member]	Mar. 31, 2013 Global Facility [Member] USD ($)	Mar. 31, 2013 Revolver [Member] USD ($)	Mar. 31, 2013 Revolver [Member] JPY (¥)
Debt [Line Items]
Maximum borrowing capacity	$ 2,033,900,000						$ 500,000,000		$ 1,600,000,000	$ 386,700,000	¥ 36,500,000,000
Potential future global credit facility borrowing limit									2,600,000,000
Global facility maturity date								Jun. 03, 2015		Mar. 01, 2014	Mar. 01, 2014
Global Facility extended maturity date								Jun. 03, 2016		Feb. 27, 2015	Feb. 27, 2015
Cross acceleration included in defaults	50,000,000
Potential future debt revolver borrowing amount	598,600,000		56,500,000,000
Bridge loan, amount outstanding during period					215,700,000	20,000,000,000
Fair Value of derivative instruments	40,800,000			39,800,000
Foreign currency exchange gain loss	1,000,000	26,800,000
Derivative Fair Value	$ 0