Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2022	Sep. 30, 2021
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	145,000,000	145,000,000
Common stock, shares issued (in shares)	105,795,000	104,327,000
Common stock, shares outstanding (in shares)	105,795,456	104,327,000