Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Revenues	$ 54,243	$ 42,018
Operating expenses:
Cost of revenues	29,442	27,056
Research and development	31,242	22,630
Selling, general and administrative	42,324	51,098
Change in fair value of contingent considerations and holdbacks	(4,135)	(2,826)
Total operating expenses	98,873	97,958
Loss from operations	(44,630)	(55,940)
Interest income	3,040	154
Interest expense	(1)	(26)
Other income (expense), net	(157)	(156)
Loss before income taxes	(41,748)	(55,968)
Income tax (provision) / benefit	(76)	10,405
Net loss attributable to common stockholders	(41,824)	(45,563)
Other comprehensive loss:
Change in unrealized loss on investments	(868)	277
Foreign currency translation adjustment	(366)	(94)
Comprehensive loss	$ (43,058)	$ (45,380)
Net loss per share attributable to common stockholders—basic (in usd per share)	$ (0.74)	$ (0.91)
Net loss per share attributable to common stockholders—diluted (in usd per share)	$ (0.74)	$ (0.91)
Weighted average shares used in computing net loss per share attributable to common stockholders—basic (in shares)	56,444	49,912
Weighted average shares used in computing net loss per share attributable to common stockholders—diluted (in shares)	56,444	49,912