Equity - Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net (loss) income	$ (2,225)	$ 4,384	$ 189	$ 6,953
Denominator
Weighted average number of shares outstanding - basic (in shares)	37,217	32,968	37,082	31,219
Effect of dilutive securities
Weighted average number of shares outstanding - diluted (in shares)	37,217	34,451	38,384	32,492
Earnings per share - basic (in dollars per share)	$ (0.06)	$ 0.13	$ 0.01	$ 0.22
Earnings per share - diluted (in dollars per share)	$ (0.06)	$ 0.13	$ 0.01	$ 0.21
Weighted average antidilutive options, unvested restricted RSUs and RSAs, unvested PSUs and ESPP shares excluded from the computation (in shares)	75	1,536	72	1,331
Stock options
Effect of dilutive securities
Dilutive options outstanding, unvested stock units and unvested stock awards (in shares)	0	6	4	2
PSUs, RSUs, and restricted stock
Effect of dilutive securities
Dilutive options outstanding, unvested stock units and unvested stock awards (in shares)	0	1,477	1,298	1,271