Annual report pursuant to Section 13 and 15(d)

Note 11 - Income Taxes (Details Textual)

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Note 11 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Effective Income Tax Rate Reconciliation, Percent, Total 5.80% 17.10% 14.20%
Income Tax Expense (Benefit), Discrete Tax Items $ 28,100 $ 19,400 $ 12,700
Excess Tax Benefit from Share-based Compensation, Operating Activities 28,100 17,700 7,200
Income Tax Expense (Benefit), Discrete Tax Items, Acquisitions     (3,200)
Income Tax Expense (Benefit) Discrete Tax Items State Apportionments     $ (2,000)
Deferred Tax Assets, Valuation Allowance, Total 6,665 7,523  
Deferred Tax Assets, Net of Valuation Allowance, Total 86,883 $ 73,353  
Undistributed Earnings of Foreign Subsidiaries 223,000    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 5,200    
Decrease in Unrecognized Tax Benefits is Reasonably Possible 2,600    
Operating Loss Carryforwards [Member]      
Deferred Tax Assets, Net of Valuation Allowance, Total 26,600    
Tax Credit Carryforwards [Member]      
Deferred Tax Assets, Net of Valuation Allowance, Total 12,600    
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]      
Operating Loss Carryforwards, Total 92,100    
Tax Credit Carryforward, Amount 10,100    
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards, Total 129,600    
Tax Credit Carryforward, Amount 4,400    
Foreign Tax Authority [Member]      
Operating Loss Carryforwards, Total $ 13,900