| Note 2 - Selected Balance Sheet Data - Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Jun. 30, 2017 | 
|---|---|---|
| Intangible assets | $ 582,624 | $ 572,191 | 
| Accumulated amortization | (144,264) | (120,149) | 
| Intangible assets, net | 438,360 | 452,042 | 
| Developed Technology Rights [Member] | ||
| Intangible assets | 283,226 | 276,959 | 
| Trade Names [Member] | ||
| Intangible assets | 87,859 | 87,092 | 
| Customer Relationships [Member] | ||
| Intangible assets | 207,230 | 204,243 | 
| Noncompete Agreements [Member] | ||
| Intangible assets | 3,277 | 3,264 | 
| Patents [Member] | ||
| Intangible assets | $ 1,032 | $ 633 | 
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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