Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	(Accumulated Deficit) Retained Earnings [Member]
Beginning Balance at Sep. 30, 2020	$ 455,580	$ 201	$ 326,963	$ 844	$ 127,572
Beginning Balance, Shares at Sep. 30, 2020		20,077
Exercise of stock options	833		833
Exercise of stock options, Shares		33
Vesting of restricted stock units, net of withholding, Shares		32
Vesting of restricted stock units, net of withholding	(534)		(534)
Stock-based compensation expense	4,883		4,883
Other comprehensive loss	(439)			(439)
Net loss	(8,328)				(8,328)
Ending Balance at Dec. 31, 2020	451,995	$ 201	332,145	405	119,244
Ending Balance, Shares at Dec. 31, 2020		20,142
Beginning Balance at Sep. 30, 2020	455,580	$ 201	326,963	844	127,572
Beginning Balance, Shares at Sep. 30, 2020		20,077
Other comprehensive loss	(1,108)
Net loss	(54,397)
Ending Balance at Jun. 30, 2021	417,850	$ 202	344,737	(264)	73,175
Ending Balance, Shares at Jun. 30, 2021		20,211
Beginning Balance at Dec. 31, 2020	451,995	$ 201	332,145	405	119,244
Beginning Balance, Shares at Dec. 31, 2020		20,142
Exercise of stock options	1,152	$ 1	1,151
Exercise of stock options, Shares		43
Stock-based compensation expense	5,280		5,280
Other comprehensive loss	(350)			(350)
Net loss	(22,045)				(22,045)
Ending Balance at Mar. 31, 2021	436,032	$ 202	338,576	55	97,199
Ending Balance, Shares at Mar. 31, 2021		20,185
Exercise of stock options	686		686
Exercise of stock options, Shares		26
Stock-based compensation expense	5,475		5,475
Other comprehensive loss	(319)			(319)
Net loss	(24,024)				(24,024)
Ending Balance at Jun. 30, 2021	417,850	$ 202	344,737	(264)	73,175
Ending Balance, Shares at Jun. 30, 2021		20,211
Beginning Balance at Sep. 30, 2021	399,429	$ 202	351,033	(382)	48,576
Beginning Balance, Shares at Sep. 30, 2021		20,238
Exercise of stock options	10,409	$ 2	10,407
Exercise of stock options, Shares		248
Vesting of restricted stock units, net of withholding, Shares		20
Vesting of restricted stock units, net of withholding	(777)	$ 1	(778)
Stock-based compensation expense	6,062		6,062
Other comprehensive loss	(624)			(624)
Net loss	(30,115)				(30,115)
Ending Balance at Dec. 31, 2021	384,384	$ 205	366,724	(1,006)	18,461
Ending Balance, Shares at Dec. 31, 2021		20,506
Beginning Balance at Sep. 30, 2021	$ 399,429	$ 202	351,033	(382)	48,576
Beginning Balance, Shares at Sep. 30, 2021		20,238
Exercise of stock options, Shares	447
Other comprehensive loss	$ (3,238)
Net loss	(95,407)
Ending Balance at Jun. 30, 2022	338,023	$ 207	388,267	(3,620)	(46,831)
Ending Balance, Shares at Jun. 30, 2022		20,720
Beginning Balance at Dec. 31, 2021	384,384	$ 205	366,724	(1,006)	18,461
Beginning Balance, Shares at Dec. 31, 2021		20,506
Exercise of stock options	3,802	$ 1	3,801
Exercise of stock options, Shares		97
Vesting of restricted stock units, net of withholding, Shares		15
Vesting of restricted stock units, net of withholding	(451)		(451)
Stock-based compensation expense	6,471		6,471
Other comprehensive loss	(2,031)			(2,031)
Net loss	(33,592)				(33,592)
Ending Balance at Mar. 31, 2022	358,583	$ 206	376,545	(3,037)	(15,131)
Ending Balance, Shares at Mar. 31, 2022		20,618
Exercise of stock options	4,120	$ 1	4,119
Exercise of stock options, Shares		102
Stock-based compensation expense	7,603		7,603
Other comprehensive loss	(583)			(583)
Net loss	(31,700)				(31,700)
Ending Balance at Jun. 30, 2022	$ 338,023	$ 207	$ 388,267	$ (3,620)	$ (46,831)
Ending Balance, Shares at Jun. 30, 2022		20,720