Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income (loss)	$ 48,675	$ (41,325)	$ 44,366	$ (62,872)	$ 7,350	$ (18,506)
Denominator:
Weighted-average basic shares outstanding (in shares)	106,757		105,545		106,394	105,034
Effect of dilutive securities (in shares)	1,386		2,384		1,499	0
Weighted-average diluted shares outstanding (in shares)	108,143		107,929		107,893	105,034
Basic (in dollars per share)	$ 0.46		$ 0.42		$ 0.07	$ (0.18)
Diluted (in dollars per share)	$ 0.45		$ 0.41		$ 0.07	$ (0.18)
Potentially dilutive securities excluded from computation of diluted earnings per share (in shares)	4,350				4,069	0