Quarterly report pursuant to Section 13 or 15(d)

Note 16 - Commitments and Contingencies (Details Textual)

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Note 16 - Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Mar. 31, 2021
Mar. 31, 2020
Jun. 30, 2020
Contractual Obligation, Total       $ 233,400
Operating Lease, Liability, Total   $ 132,004   149,700
Long-term Debt, Total       50,000
Purchase Obligation, Total       $ 32,900
Repayments of Long-term Debt, Total   50,000 $ (0)  
Operating Lease, Payments   25,923 24,411  
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability   23,672 $ 16,333  
Dividends Payable   6,300    
Lease With Landlords [Member]        
Operating Lease, Payments   25,900    
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability   $ 23,700    
Revolving Credit Facility [Member] | The Facility [Member]        
Repayments of Long-term Debt, Total $ 50,000