Note 4 - Fair Value Measurements - Liability Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details) - Contingent Consideration [Member] - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2016 |
|
| Fair value at the beginning of period | $ 82.0 | $ 38.5 |
| Purchase price contingent consideration (Note 3) | (0.4) | 41.2 |
| Change in fair value of contingent consideration | 10.5 | 12.4 |
| Fair value at the ending of period | $ 92.1 | $ 92.1 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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