Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011 M		Dec. 31, 2010
Income Tax [Line Items]
Income tax credits	$ 53,300,000	$ 3,700,000	[1]	$ 44,600,000
Percentage of tax benefit of a qualifying position greater than largest amount of tax benefit	50.00%
Unrecognized tax benefits related to federal, state and foreign taxes	43,400,000	45,000,000		53,600,000
Unrecognized tax benefits that would impact effective tax rate	36,600,000
Accrued interest	4,800,000	5,000,000
Interest and penalties, expenses	200,000	1,600,000		700,000
Reduction in income tax provision		17,600,000
Decrease in unrecognized tax benefits		17,200,000
Number of months unrecognized tax benefits may decrease		12
Undistributed earnings on foreign operations for which income taxes have not been provided	1,600,000,000
Federal
Income Tax [Line Items]
Operating loss carryforwards, net		163,900,000
Operating loss carryforwards, expiration dates		2014 and 2032
State and Local Jurisdiction
Income Tax [Line Items]
Operating loss carryforwards, net		363,700,000
Operating loss carryforwards, expiration dates		2013 and 2033
Foreign Tax Authority
Income Tax [Line Items]
Operating loss carryforwards, net		30,600,000
Operating loss carryforwards, expiration dates		2014 and 2021
Indefinite Life
Income Tax [Line Items]
Income tax credits		10,800,000
Definite Life
Income Tax [Line Items]
Income tax credits		$ 15,600,000
Definite Life | Minimum
Income Tax [Line Items]
Income tax credits carryforwards, expiration year		2014
Definite Life | Maximum
Income Tax [Line Items]
Income tax credits carryforwards, expiration year		2033

[1] No tax benefit was recognized from the incentive tax grant in Puerto Rico due to the charge for Hernia Product Claims.