Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Restricted stock units	Performance share units	Common Stock	Common Stock Restricted stock units	Common Stock Performance share units	Additional paid in capital	Additional paid in capital Restricted stock units	Additional paid in capital Performance share units	Accumulated deficit	Accumulated other comprehensive income (loss)	Treasury Stock
Beginning Balance (in shares) at May. 31, 2022				39,541,173,000
Beginning Balance at May. 31, 2022	$ 424,489			$ 380			$ 586,879			$ (158,413)	$ 1,357	$ (5,714)
Beginning Balance, Treasury (in shares) at May. 31, 2022												(370,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(13,004)									(13,004)
Exercise of stock option (in shares)				6,617,000
Exercise of stock options	(29)						(29)
Issuance/Cancellation of performance share units and restricted stock units, net (in shares)					213,241,000	29,826,000
Issuance/Cancellation of performance share units and restricted stock units		$ (648)	$ (312)					$ (648)	$ (312)
Purchase of common stock under ESPP (in shares)				56,894,000
Purchases of common stock under ESPP	1,071			$ 1			1,070
Stock-based compensation	3,024						3,024
Other comprehensive loss, net of tax	(550)										(550)
Ending Balance (in shares) at Aug. 31, 2022				39,847,751,000
Ending Balance at Aug. 31, 2022	414,041			$ 381			589,984			(171,417)	807	$ (5,714)
Ending Balance, Treasury (in shares) at Aug. 31, 2022												(370,000,000)
Beginning Balance (in shares) at May. 31, 2022				39,541,173,000
Beginning Balance at May. 31, 2022	424,489			$ 380			586,879			(158,413)	1,357	$ (5,714)
Beginning Balance, Treasury (in shares) at May. 31, 2022												(370,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(30,975)
Ending Balance (in shares) at Feb. 28, 2023				39,976,422,000
Ending Balance at Feb. 28, 2023	397,655			$ 382			596,225			(189,388)	(3,850)	$ (5,714)
Ending Balance, Treasury (in shares) at Feb. 28, 2023												(370,000,000)
Beginning Balance (in shares) at Aug. 31, 2022				39,847,751,000
Beginning Balance at Aug. 31, 2022	414,041			$ 381			589,984			(171,417)	807	$ (5,714)
Beginning Balance, Treasury (in shares) at Aug. 31, 2022												(370,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(8,486)									(8,486)
Exercise of stock option (in shares)				15,000,000
Exercise of stock options	184						184
Issuance/Cancellation of performance share units and restricted stock units, net (in shares)					11,393,000
Issuance/Cancellation of performance share units and restricted stock units		(36)						(36)
Stock-based compensation	3,350						3,350
Other comprehensive loss, net of tax	(1,095)										(1,095)
Ending Balance (in shares) at Nov. 30, 2022				39,874,144,000
Ending Balance at Nov. 30, 2022	407,958			$ 381			593,482			(179,903)	(288)	$ (5,714)
Ending Balance, Treasury (in shares) at Nov. 30, 2022												(370,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,485)									(9,485)
Issuance/Cancellation of performance share units and restricted stock units, net (in shares)					9,394,000
Issuance/Cancellation of performance share units and restricted stock units		(36)						(36)
Purchase of common stock under ESPP (in shares)				92,884,000
Purchases of common stock under ESPP	977			$ 1			976
Stock-based compensation	1,803						1,803
Other comprehensive loss, net of tax	(3,562)										(3,562)
Ending Balance (in shares) at Feb. 28, 2023				39,976,422,000
Ending Balance at Feb. 28, 2023	397,655			$ 382			596,225			(189,388)	(3,850)	$ (5,714)
Ending Balance, Treasury (in shares) at Feb. 28, 2023												(370,000,000)
Beginning Balance (in shares) at May. 31, 2023				39,981,422
Beginning Balance at May. 31, 2023	$ 378,296			$ 382			599,206			(210,855)	(4,723)	$ (5,714)
Beginning Balance, Treasury (in shares) at May. 31, 2023	(370,000)											(370,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 45,884									45,884
Issuance/Cancellation of performance share units and restricted stock units, net (in shares)					386,031	87,377
Issuance/Cancellation of performance share units and restricted stock units		(280)	(210)					(280)	(210)
Purchase of common stock under ESPP (in shares)				131,811
Purchases of common stock under ESPP	900			$ 1			899
Stock-based compensation	4,144						4,144
Other comprehensive loss, net of tax	(930)										(930)
Ending Balance (in shares) at Aug. 31, 2023				40,586,641
Ending Balance at Aug. 31, 2023	427,804			$ 383			603,759			(164,971)	(5,653)	$ (5,714)
Ending Balance, Treasury (in shares) at Aug. 31, 2023												(370,000)
Beginning Balance (in shares) at May. 31, 2023				39,981,422
Beginning Balance at May. 31, 2023	$ 378,296			$ 382			599,206			(210,855)	(4,723)	$ (5,714)
Beginning Balance, Treasury (in shares) at May. 31, 2023	(370,000)											(370,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (170,900)
Ending Balance (in shares) at Feb. 29, 2024				40,794,533
Ending Balance at Feb. 29, 2024	$ 218,698			$ 385			608,588			(381,755)	(2,806)	$ (5,714)
Ending Balance, Treasury (in shares) at Feb. 29, 2024	(370,000)											(370,000)
Beginning Balance (in shares) at Aug. 31, 2023				40,586,641
Beginning Balance at Aug. 31, 2023	$ 427,804			$ 383			603,759			(164,971)	(5,653)	$ (5,714)
Beginning Balance, Treasury (in shares) at Aug. 31, 2023												(370,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(29,048)									(29,048)
Issuance/Cancellation of performance share units and restricted stock units, net (in shares)					7,765
Issuance/Cancellation of performance share units and restricted stock units		(16)	$ (336)					(16)	$ (336)
Stock-based compensation	1,877						1,877
Other comprehensive loss, net of tax	945										945
Ending Balance (in shares) at Nov. 30, 2023				40,594,406
Ending Balance at Nov. 30, 2023	401,226			$ 383			605,284			(194,019)	(4,708)	$ (5,714)
Ending Balance, Treasury (in shares) at Nov. 30, 2023												(370,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(187,736)									(187,736)
Issuance/Cancellation of performance share units and restricted stock units, net (in shares)					49,701
Issuance/Cancellation of performance share units and restricted stock units		$ (9)						$ (9)
Purchase of common stock under ESPP (in shares)				150,426
Purchases of common stock under ESPP	703			$ 2			701
Stock-based compensation	2,612						2,612
Other comprehensive loss, net of tax	1,902										1,902
Ending Balance (in shares) at Feb. 29, 2024				40,794,533
Ending Balance at Feb. 29, 2024	$ 218,698			$ 385			$ 608,588			$ (381,755)	$ (2,806)	$ (5,714)
Ending Balance, Treasury (in shares) at Feb. 29, 2024	(370,000)											(370,000)