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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Accounts receivable, allowance for doubtful accounts $ 4,506   $ 4,206
Common stock, no par value (in usd per share) $ 0   $ 0
Common stock, shares authorized (in shares) 300,000,000   300,000,000
Common stock, shares issued (in shares) 153,089,681   120,923,171
Treasury stock (in shares) 14,802,661   13,972,758
Series B Convertible Preferred Stock      
Redeemable convertible preferred stock, par value (in usd per share) $ 0   $ 0
Redeemable convertible preferred stock, cumulative percentage   5.00% 5.00%
Redeemable convertible preferred stock, shares issued (in shares) 215,000   75,000
Redeemable convertible preferred stock redemption value $ 2,225,658   $ 798,181
Series A Preferred Stock      
Preferred stock, par value (in usd per share) $ 0   $ 0
Preferred stock, dividend rate, percentage 6.00%   6.00%
Preferred stock, shares issued (in shares) 2,300,000   2,300,000