Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Jun. 30, 2024
Sep. 30, 2023
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Class A Common Stock    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 400,000,000 400,000,000
Common stock, shares issued (in shares) 43,926,017 43,760,546
Common stock, shares outstanding (in shares) 43,763,213 43,727,680
Treasury stock, shares (in shares) 162,804 32,866
Class B Common Stock    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 11,921,463 11,921,463
Common stock, shares outstanding (in shares) 8,998,511 8,998,511
Treasury stock, shares (in shares) 2,922,952 2,922,952