Subsequent Events (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	Jan. 18, 2013
Subsequent Event [Line Items]
Closing price of Progenics' common shares	$ 2.83
MIP [Member]
Subsequent Event [Line Items]
Shares issued for acquisition	4,566
Shares for acquisition held in escrow	500
Maximum milestone payment for specified commercial events	$ 23
Maximum milestone payment for achieving sales targets	$ 70