QUARTERLY FINANCIAL SUMMARY (Unaudited) - CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ DEFICIT (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Beginning balance	$ (101,931)	$ (94,433)	$ (91,321)	$ (84,369)	$ (77,963)	$ (82,535)	$ (76,500)	$ (143,739)	$ (84,369)	$ (143,739)	$ (84,369)	$ (143,739)	$ (84,369)	$ (143,739)	$ (199,936)	[1]
Beginning balance (in shares)	95,850			93,574	93,144		90,606	60,433	93,574	60,433	93,574	60,433	93,574	60,433
Net income (loss)	$ (18,943)	(9,869)	(3,331)	$ (9,142)	$ (10,176)	113	$ (7,424)	$ (879)	$ (12,473)	$ (8,303)	$ (22,342)	$ (8,190)	$ (41,286)	$ (18,368)	38,355
Foreign currency translation adjustments, net		1,465	(720)	249		1,480	(1,298)	(1,276)	(471)	(2,574)	994	(1,094)	(612)	(158)	(567)
Warrants issued related to long-term debt									49		49		49
Shares issued under employee incentive plans, net		0	0										0	0	0
Stock-based compensation		906	939						2,831		3,737		4,720	10,750	13,829
Activity				(7,192)		2,289	(10,555)	57,898
Ending balance	$ (121,498)	$ (101,931)	(94,433)	(91,321)	$ (84,369)	$ (77,963)	(82,535)	$ (76,500)	(94,433)	(82,535)	$ (101,931)	$ (77,963)	$ (121,498)	$ (84,369)	$ (143,739)
Ending balance (in shares)	95,850	95,850			93,574	93,144		90,606			95,850	93,144	95,850	93,574	60,433
Adjustments
Beginning balance			2,759	2,519	$ (910)	$ (3,193)	(7,713)	$ (17,056)	2,519	(17,056)	$ 2,519	$ (17,056)	$ 2,519	$ (17,056)	$ (87,691)
Net income (loss)				1,434		2,283	4,520	9,341		13,861		16,144		19,575	70,635
Foreign currency translation adjustments, net				0		0	0	0		0		0		0	0
Activity				240		2,283	4,520	9,341
Ending balance				2,759	2,519	(910)	(3,193)	(7,713)		(3,193)		(910)		2,519	(17,056)
Common Stock
Beginning balance	$ 959	$ 956	$ 938	$ 936	$ 932	$ 922	$ 907	$ 605	$ 936	$ 605	$ 936	$ 605	$ 936	$ 605	$ 570	[1]
Beginning balance (in shares)	95,850	95,519	93,705	93,574	93,144	92,158	90,606	60,433	93,574	60,433	93,574	60,433	93,574	60,433	56,915	[1]
Shares issued under employee incentive plans, net (in shares)		331	1,814						1,945		2,276		2,276	2,180	2,308
Shares issued under employee incentive plans, net		$ 3	$ 18						$ 20		$ 23		$ 23	$ 21	$ 23
Activity				$ 2		$ 10	$ 15	$ 302
Activity (in shares)				131		986	1,552	30,173
Ending balance	$ 959	$ 959	$ 956	$ 938	$ 936	$ 932	$ 922	$ 907	$ 956	$ 922	$ 959	$ 932	$ 959	$ 936	$ 605
Ending balance (in shares)	95,850	95,850	95,519	93,705	93,574	93,144	92,158	90,606	95,519	92,158	95,850	93,144	95,850	93,574	60,433
Additional Paid-in Capital
Beginning balance	$ 706,133	$ 705,230	$ 704,309	$ 702,370	$ 699,536	$ 696,567	$ 693,896	$ 624,805	$ 702,370	$ 624,805	$ 702,370	$ 624,805	$ 702,370	$ 624,805	$ 606,431	[1]
Warrants issued related to long-term debt									49		49		49
Shares issued under employee incentive plans, net		(3)	(18)						(20)		(23)		(23)	(21)	(23)
Stock-based compensation		906	939						2,831		3,737		4,720	10,750	13,829
Activity				3,133		2,969	2,671	69,091
Ending balance	707,116	706,133	705,230	704,309	702,370	699,536	696,567	693,896	705,230	696,567	706,133	699,536	707,116	702,370	624,805
Additional Paid-in Capital | Adjustments
Beginning balance				(20,233)				(20,233)	(20,233)	(20,233)	(20,233)	(20,233)	(20,233)	(20,233)	(20,233)
Activity				(1,194)
Ending balance					(20,233)									(20,233)	(20,233)
Accumulated Deficit
Beginning balance	(808,436)	(798,567)	(795,236)	(786,094)	(775,914)	(776,027)	(768,604)	(767,726)	(786,094)	(767,726)	(786,094)	(767,726)	(786,094)	(767,726)	(806,081)	[1]
Net income (loss)		(9,869)	(3,331)						(12,473)		(22,342)		(41,286)	(18,368)	38,355
Activity				(10,576)		(2,170)	(11,943)	(10,219)
Ending balance	(827,380)	(808,436)	(798,567)	(795,236)	(786,094)	(775,914)	(776,027)	(768,604)	(798,567)	(776,027)	(808,436)	(775,914)	(827,380)	(786,094)	(767,726)
Accumulated Deficit | Adjustments
Beginning balance				22,752				3,177	22,752	3,177	22,752	3,177	22,752	3,177	(67,458)
Net income (loss)														19,575	70,635
Activity				1,434		2,283	4,520	9,341
Ending balance					22,752									22,752	3,177
Accumulated Other Comprehensive Loss
Beginning balance	(587)	(2,052)	(1,332)	(1,581)	(2,517)	(3,997)	(2,699)	(1,423)	(1,581)	(1,423)	(1,581)	(1,423)	(1,581)	(1,423)	(856)	[1]
Foreign currency translation adjustments, net		1,465	(720)						(471)		994		(612)	(158)	(567)
Activity				249		1,480	(1,298)	(1,276)
Ending balance	$ (2,193)	$ (587)	$ (2,052)	$ (1,332)	$ (1,581)	$ (2,517)	$ (3,997)	$ (2,699)	$ (2,052)	$ (3,997)	$ (587)	$ (2,517)	$ (2,193)	$ (1,581)	$ (1,423)

[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.