Note 11 - Fair Value Measurements (Details) - Financial Instruments, Assets and Liabilities Measured at Fair Value on Recurring Basis (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Asset Category
Money market accounts	$ 15.4us-gaap_MoneyMarketFundsAtCarryingValue	$ 78.6us-gaap_MoneyMarketFundsAtCarryingValue
Available for sale equity securities	2.3	2.3
Derivatives	0.1us-gaap_DerivativeAssets	0.2us-gaap_DerivativeAssets
Total	17.8us-gaap_AssetsFairValueDisclosure	81.1us-gaap_AssetsFairValueDisclosure
Liability Category
Long term contingent consideration	63.9	34.8
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Asset Category
Money market accounts	15.4	78.6
Available for sale equity securities	1.5	1.5
Total	16.9	80.1
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Asset Category
Available for sale equity securities	0.8	0.8
Derivatives	0.1	0.2
Total	0.9	1.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Liability Category
Long term contingent consideration	$ 63.9	$ 34.8

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of equity securities categorized neither as held-to-maturity nor as trading.

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Amount of liability recognized arising from contingent consideration in a business combination.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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- Definition

Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Cash Equivalents

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