Litigation (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended		9 Months Ended
	Sep. 24, 2012 Lexington Insurance Company	Sep. 30, 2012 Lexington Insurance Company	Sep. 30, 2012 Sandoz Inc patent
Litigation
Number of patents listed in the Orange Book			3
Number of days from receipt of Notice Letter to commence patent infringement lawsuit against Sandoz			45 days
Maximum period for which lawsuit would preclude the FDA from approving Sandoz's ANDA			30 months
Estimated net commercial value of damaged inventory		$ 65.0
Settlement agreement	$ 31.0
Period from the date of execution in which settlement agreement amount will be paid	30 days