Medafor Matters (Details) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended			0 Months Ended	3 Months Ended		1 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 21, 2013	Sep. 30, 2012	Jun. 30, 2012	Oct. 24, 2014	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2015
Subsidiary or Equity Method Investee [Line Items]
Additional payment received from C.R. Bard for acquisition of outstanding	$ 530,000	$ 15,421,000
Gain on sale of outstanding shares of common stock	530,000	12,742,000
Gain recorded as a reduction in general, administrative, and marketing expenses	73,754,000	68,112,000	65,149,000
Medafor Inc. [Member]
Subsidiary or Equity Method Investee [Line Items]
Additional payment received from C.R. Bard for acquisition of outstanding				15,400,000
Shares of Medafor common stock acquired by C.R. Bard				2.4
Proceeds from legal settlement					3,500,000
Gain recorded as a reduction in general, administrative, and marketing expenses						4,700,000
Discharged reduction in accounts payable pursuant to settlement agreement						1,200,000
C.R. Bard, Inc. [Member]
Subsidiary or Equity Method Investee [Line Items]
Additional payment received from C.R. Bard for acquisition of outstanding							530,000
Gain on sale of outstanding shares of common stock								530,000	12,700,000
C.R. Bard, Inc. [Member] | Scenario, Forecast [Member]
Subsidiary or Equity Method Investee [Line Items]
Additional payments that could be received										$ 7,900,000