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Schedule II (Valuation and Qualifying Accounts) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Allowance for accounts receivable for refunds [Member]      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Year $ 0 $ 387 $ 450
Charged to Costs and Expenses   0 14,007
Charged to Other Accounts   (387) 0
Deductions   0 14,070
Balance at End of Year   0 387
Allowance for accounts receivable for uncollectible accounts [Member]      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Year 14,532 18,838 15,806
Charged to Costs and Expenses 16,152 9,817 7,115
Charged to Other Accounts 0 832 0
Deductions 4,169 14,955 4,083
Balance at End of Year 26,515 14,532 18,838
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Year 9,943 11,496 9,456
Charged to Costs and Expenses 71 6,767 2,266
Charged to Other Accounts (77) 4 (19)
Deductions 0 8,324 207
Balance at End of Year 9,937 9,943 11,496
SEC Schedule, 12-09, Reserve, Business Restructuring [Member]      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Year 25,083 38,927 46,115
Charged to Costs and Expenses 4,955 8,870 19,893
Charged to Other Accounts (25,030) 0 0
Deductions 3,573 22,714 27,081
Balance at End of Year $ 1,435 $ 25,083 $ 38,927