Temporary Equity - Schedule of the Activity and Balances for Preferred Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2026	May 31, 2025
Series E Redeemable Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary equity outstanding (in shares)	301,673	0
Temporary equity, beginning balance	$ 6,932	$ 0
Issuances, net of costs (in shares)	0	301,673
Issuances, net of costs	$ 0	$ 6,932
Conversions (in shares)	0	0
Conversions	$ 0	$ 0
Redemptions (in shares)	(25,000)	0
Redemptions	$ (626)	$ 0
Temporary equity outstanding (in shares)	276,673	301,673
Temporary equity, ending balance	$ 6,306	$ 6,932
Series F Convertible Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary equity outstanding (in shares)	0	0
Temporary equity, beginning balance	$ 0	$ 0
Issuances, net of costs (in shares)	0	53,191
Issuances, net of costs	$ 0	$ 48,350
Conversions (in shares)	0	(53,191)
Conversions	$ 0	$ (48,350)
Redemptions (in shares)	0	0
Redemptions	$ 0	$ 0
Temporary equity outstanding (in shares)	0	0
Temporary equity, ending balance	$ 0	$ 0
Series E-1 Redeemable Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary equity outstanding (in shares)	62,485	0
Temporary equity, beginning balance	$ 57,011	$ 0
Issuances, net of costs (in shares)	0	62,500
Issuances, net of costs	$ 10	$ 57,026
Conversions (in shares)	0	0
Conversions	$ 0	$ 0
Redemptions (in shares)	(576)	(15)
Redemptions	$ (561)	$ (15)
Temporary equity outstanding (in shares)	61,909	62,485
Temporary equity, ending balance	$ 56,460	$ 57,011
Series G preferred stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Temporary equity outstanding (in shares)	78,000	0
Temporary equity, beginning balance	$ 72,094	$ 0
Issuances, net of costs (in shares)	835,800	78,000
Issuances, net of costs	$ 803,091	$ 72,094
Conversions (in shares)	(913,800)	0
Conversions	$ (875,185)	$ 0
Redemptions (in shares)	0	0
Redemptions	$ 0	$ 0
Temporary equity outstanding (in shares)	0	78,000
Temporary equity, ending balance	$ 0	$ 72,094