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Valuation and Qualifying Accounts
 12 Months Ended
Sep. 30, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
VALUATION AND QUALIFYING ACCOUNTS
(dollar and share amounts in thousands, except per share data or as otherwise disclosed)
 
 
  
Accounts

Receivable
Allowances
 
 
Valuation

Allowances on
Net Deferred
Tax Assets
 
Balance as of September 30, 2019
    $ 36,121     $ 85,533  
Charged to costs and expenses
      18,465       8,521  
Charged to other accounts
      (3,523 )      1,005(1
)
Deductions
      (27,644 )(
3
) 		     (25,604 )(
2
) 
  
 
 
 
 
 
 
 
Balance as of September 30, 2020
      23,419       69,455  
Charged to costs and expenses
      10,345       6,382  
Charged to other accounts
      156       3,720(1
)
Deductions
      (13,855 )(
5
) 		     (14,007 )(
4
) 
  
 
 
 
 
 
 
 
Balance as of September 30, 2021
      20,065       65,550  
Charged to costs and expenses
      8,263       3,840  
Charged to other accounts
      (424 )      584(1
)
Deductions
      (11,277 )(7)      (13,106 )(6) 
  
 
 
 
 
 
 
 
Balance as of September 30, 2022
    $
 
 
 
 
 
 
 16,627     $ 56,868  
  
 
 
 
 
 
 
 
 
(1)
Includes valuation allowances on deferred tax assets incurred in connection with an acquisition.
(2)
$2,283 of valuation allowances on deferred tax assets were written off against the related deferred tax assets, and the remaining deductions in the valuation allowances on net deferred tax assets were released to earnings.
(
3
)
$4,969 of accounts receivable allowances were written off against the related accounts receivables, $7,089 were written off against deferred
revenue and the remaining deductions in the accounts receivable allowances were released to earnings.
(4)
$1,557 of valuation allowances on deferred tax assets were written off against the related deferred tax assets, and the remaining deductions in the valuation allowances on net deferred tax assets were released to earnings.
(5)
$8,486 of accounts receivable allowances were written off against the related accounts receivables, and the remaining deductions in the accounts receivable allowances were released to earnings.
(6)
$4,684 of valuation allowances on deferred tax assets were written off against the related deferred tax assets, and the remaining deductions in the valuation allowances on net deferred tax assets were released to earnings.
(7)
$6,361 of accounts receivable allowances were written off against the related accounts receivables, and the remaining deductions in the
accounts receivable allowances were released to earnings.