CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) shares in Thousands, $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Mar. 31, 2021	[1]		56,915
Beginning balance at Mar. 31, 2021	[1]	$ (199,936)	$ 570	$ 606,431	$ (806,081)	$ (856)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		38,355			38,355
Foreign currency translation adjustments, net of income taxes		(567)				(567)
Shares issued under employee stock purchase plan (in shares)			389
Shares issued under employee stock purchase plan		1,762	$ 4	1,758
Shares issued under employee incentive plans, net (in shares)			2,308
Shares issued under employee incentive plans, net		0	$ 23	(23)
Shares issued in connection with business acquisition (in shares)			821
Shares issued in connection with business acquisition		2,818	$ 8	2,810
Stock-based compensation		$ 13,829		13,829
Ending balance (in shares) at Mar. 31, 2022		60,433	60,433
Ending balance at Mar. 31, 2022		$ (143,739)	$ 605	624,805	(767,726)	(1,423)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(879)
Foreign currency translation adjustments, net of income taxes		$ (1,276)
Ending balance (in shares) at Jun. 30, 2022		90,606	90,606
Ending balance at Jun. 30, 2022		$ (76,500)	$ 907	693,896	(768,604)	(2,699)
Beginning balance (in shares) at Mar. 31, 2022		60,433	60,433
Beginning balance at Mar. 31, 2022		$ (143,739)	$ 605	624,805	(767,726)	(1,423)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(8,303)
Foreign currency translation adjustments, net of income taxes		(2,574)
Ending balance (in shares) at Sep. 30, 2022			92,158
Ending balance at Sep. 30, 2022		$ (82,535)	$ 922	696,567	(776,027)	(3,997)
Beginning balance (in shares) at Mar. 31, 2022		60,433	60,433
Beginning balance at Mar. 31, 2022		$ (143,739)	$ 605	624,805	(767,726)	(1,423)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(8,190)
Foreign currency translation adjustments, net of income taxes		$ (1,094)
Ending balance (in shares) at Dec. 31, 2022		93,144	93,144
Ending balance at Dec. 31, 2022		$ (77,963)	$ 932	699,536	(775,914)	(2,517)
Beginning balance (in shares) at Mar. 31, 2022		60,433	60,433
Beginning balance at Mar. 31, 2022		$ (143,739)	$ 605	624,805	(767,726)	(1,423)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(18,368)			(18,368)
Foreign currency translation adjustments, net of income taxes		(158)				(158)
Shares issued under employee stock purchase plan (in shares)			600
Shares issued under employee stock purchase plan		897	$ 6	891
Shares issued under employee incentive plans, net (in shares)			2,180
Shares issued under employee incentive plans, net		0	$ 21	(21)
Shares issued in connection with rights offering, net (in shares)			30,000
Shares issued in connection with rights offering, net		66,249	$ 300	65,949
Shares issued in connection with business acquisition (in shares)			361
Shares issued in connection with business acquisition		0	$ 4	(4)
Stock-based compensation		$ 10,750		10,750
Ending balance (in shares) at Mar. 31, 2023		93,574	93,574
Ending balance at Mar. 31, 2023		$ (84,369)	$ 936	702,370	(786,094)	(1,581)
Beginning balance (in shares) at Jun. 30, 2022		90,606	90,606
Beginning balance at Jun. 30, 2022		$ (76,500)	$ 907	693,896	(768,604)	(2,699)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(7,424)
Foreign currency translation adjustments, net of income taxes		(1,298)
Ending balance (in shares) at Sep. 30, 2022			92,158
Ending balance at Sep. 30, 2022		(82,535)	$ 922	696,567	(776,027)	(3,997)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		113
Foreign currency translation adjustments, net of income taxes		$ 1,480
Ending balance (in shares) at Dec. 31, 2022		93,144	93,144
Ending balance at Dec. 31, 2022		$ (77,963)	$ 932	699,536	(775,914)	(2,517)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		$ (10,176)
Ending balance (in shares) at Mar. 31, 2023		93,574	93,574
Ending balance at Mar. 31, 2023		$ (84,369)	$ 936	702,370	(786,094)	(1,581)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(9,142)
Foreign currency translation adjustments, net of income taxes		249
Ending balance (in shares) at Jun. 30, 2023			93,705
Ending balance at Jun. 30, 2023		$ (91,321)	$ 938	704,309	(795,236)	(1,332)
Beginning balance (in shares) at Mar. 31, 2023		93,574	93,574
Beginning balance at Mar. 31, 2023		$ (84,369)	$ 936	702,370	(786,094)	(1,581)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(12,473)			(12,473)
Foreign currency translation adjustments, net of income taxes		(471)				(471)
Shares issued under employee incentive plans, net (in shares)			1,945
Shares issued under employee incentive plans, net			$ 20	(20)
Warrants issued related to long-term debt		49		49
Stock-based compensation		2,831		2,831
Ending balance (in shares) at Sep. 30, 2023			95,519
Ending balance at Sep. 30, 2023		$ (94,433)	$ 956	705,230	(798,567)	(2,052)
Beginning balance (in shares) at Mar. 31, 2023		93,574	93,574
Beginning balance at Mar. 31, 2023		$ (84,369)	$ 936	702,370	(786,094)	(1,581)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(22,342)			(22,342)
Foreign currency translation adjustments, net of income taxes		994				994
Shares issued under employee incentive plans, net (in shares)			2,276
Shares issued under employee incentive plans, net			$ 23	(23)
Warrants issued related to long-term debt		49		49
Stock-based compensation		$ 3,737		3,737
Ending balance (in shares) at Dec. 31, 2023		95,850	95,850
Ending balance at Dec. 31, 2023		$ (101,931)	$ 959	706,133	(808,436)	(587)
Beginning balance (in shares) at Mar. 31, 2023		93,574	93,574
Beginning balance at Mar. 31, 2023		$ (84,369)	$ 936	702,370	(786,094)	(1,581)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(41,286)			(41,286)
Foreign currency translation adjustments, net of income taxes		(612)				(612)
Shares issued under employee incentive plans, net (in shares)			2,276
Shares issued under employee incentive plans, net		0	$ 23	(23)
Warrants issued related to long-term debt		49		49
Stock-based compensation		$ 4,720		4,720
Ending balance (in shares) at Mar. 31, 2024		95,850	95,850
Ending balance at Mar. 31, 2024		$ (121,498)	$ 959	707,116	(827,380)	(2,193)
Beginning balance (in shares) at Jun. 30, 2023			93,705
Beginning balance at Jun. 30, 2023		(91,321)	$ 938	704,309	(795,236)	(1,332)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(3,331)			(3,331)
Foreign currency translation adjustments, net of income taxes		(720)				(720)
Shares issued under employee incentive plans, net (in shares)			1,814
Shares issued under employee incentive plans, net		0	$ 18	(18)
Stock-based compensation		939		939
Ending balance (in shares) at Sep. 30, 2023			95,519
Ending balance at Sep. 30, 2023		(94,433)	$ 956	705,230	(798,567)	(2,052)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(9,869)			(9,869)
Foreign currency translation adjustments, net of income taxes		1,465				1,465
Shares issued under employee incentive plans, net (in shares)			331
Shares issued under employee incentive plans, net		0	$ 3	(3)
Stock-based compensation		$ 906		906
Ending balance (in shares) at Dec. 31, 2023		95,850	95,850
Ending balance at Dec. 31, 2023		$ (101,931)	$ 959	706,133	(808,436)	(587)
Increase (Decrease) in Stockholders' Equity
Net income (loss)		$ (18,943)
Ending balance (in shares) at Mar. 31, 2024		95,850	95,850
Ending balance at Mar. 31, 2024		$ (121,498)	$ 959	$ 707,116	$ (827,380)	$ (2,193)

[1] The March 31, 2021 ending total shareholders’ deficit reflects the impact of the restatement totaling $87.7 million related to SSP and warrant classification adjustments prior to that time, including a $67.5 million increase of Accumulated deficit and a $20.2 million decrease of Additional paid-in -capital.