Note 4 - Fair Value Measurements - Liability Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details) - Contingent Consideration [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2017 |
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| Fair value at the beginning of period | $ 40.9 | $ 68.4 |
| Payments | (35.0) | |
| Change in fair value of contingent consideration | 12.4 | 19.9 |
| Fair value at the end of period | $ 53.3 | $ 53.3 |
| 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 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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- Details
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