Annual report pursuant to Section 13 and 15(d)

Capitalized Software Costs, Net - Schedule of Components of Capitalized Computer Software (Details)

v3.21.2
Capitalized Software Costs, Net - Schedule of Components of Capitalized Computer Software (Details) - USD ($)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Research and Development [Abstract]      
Capitalized software $ 139,145,000 $ 120,677,000  
Accumulated amortization (96,277,000) (82,644,000)  
Capitalized software, net 42,868,000 38,033,000  
Capitalized software amortization expense 12,300,000 9,600,000 $ 7,200,000
Capitalized software written off $ 2,400,000 $ 600,000 $ 0