Medafor Matters (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended	12 Months Ended			0 Months Ended		3 Months Ended		6 Months Ended	42 Months Ended	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 21, 2013 Medafor Inc. [Member]	Sep. 30, 2013 Medafor Inc. [Member]	Sep. 30, 2012 Medafor Inc. [Member]	Dec. 31, 2012 Medafor Inc. [Member]	Dec. 31, 2014 C.R. Bard, Inc. [Member] Scenario, Forecast [Member]	Dec. 31, 2017 C.R. Bard, Inc. [Member] Scenario, Forecast [Member]	Jun. 30, 2012 Medafor Settlement [Member]
Subsidiary or Equity Method Investee [Line Items]
Shares purchased under stock purchase agreement								2.4
Investment in equity securities			$ 5,908,000					$ 2,600,000
Value of Medafor derivative								0
Initial payment received from C.R. Bard for acquisition of outstanding shares of common stock		15,421,000			15,400,000
Outstanding shares of common stock acquired by C.R. Bard						2.4
Initial gain on sale of outstanding shares of common stock	12,700,000	12,742,000
Additional payments that could be received										8,400,000
Approximate amount that could be received from first possible additional payment									525,000
Proceeds from legal settlement							3,500,000
Gain recorded as a reduction in general, administrative, and marketing expenses		68,112,000	65,149,000	57,302,000							4,700,000
Discharged reduction in accounts payable pursuant to settlement agreement											$ 1,200,000