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Fair Value Measurements (Details 2) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of fair and carrying value of debt instruments
Notes payable, Carrying Value	$ 594.6	$ 595.9
Debt instruments, Fair Value	665.1	665.4
Notes Payable to Fumedica
Summary of fair and carrying value of debt instruments
Notes payable, Fair Value	17.5	17.5
Notes payable, Carrying Value	16.1	15.8
6.875% Senior Notes due 2018
Summary of fair and carrying value of debt instruments
Notes payable, Fair Value	647.6	647.9
Notes payable, Carrying Value	$ 578.5	$ 580.1

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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-Publisher FASB

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Fair value portion of notes payable.

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