Tax Equity Financings (Details) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
Tax Equity Financings (Details) $ in Thousands	Nov. 30, 2021 USD ($) MW	Aug. 31, 2021 USD ($) MW	Apr. 30, 2026 USD ($)	Apr. 30, 2025 USD ($)	Apr. 30, 2026 USD ($) MW	Apr. 30, 2025 USD ($)
Tax Equity Financings
Net income (loss) attributable to noncontrolling interests			$ 278	$ 300	$ (2,913)	$ (3,760)
Derby Project 14.0 Mega Watt
Tax Equity Financings
Capacity of plant \| MW					14
Derby Project 2.8 Mega Watt
Tax Equity Financings
Capacity of plant \| MW					2.8
Derby Project
Tax Equity Financings
Net income (loss) attributable to noncontrolling interests			400	400	$ 700	800
Groton Project
Tax Equity Financings
Net income (loss) attributable to noncontrolling interests			30	10	3,900	(3,500)
LIPA Yaphank Project
Tax Equity Financings
Net income (loss) attributable to noncontrolling interests			(100)	100	$ 200	1,100
Tax equity financing transactions with Franklin Park \| Derby Project 14.0 Mega Watt
Tax Equity Financings
Capacity of plant \| MW					14
Tax equity financing transactions with Franklin Park \| Derby Project 2.8 Mega Watt
Tax Equity Financings
Capacity of plant \| MW					2.8
Tax equity financing transactions with Franklin Park \| Derby Project
Tax Equity Financings
Amount of distribution			300	300	$ 600	700
East West Bank \| Groton Project
Tax Equity Financings
Capacity of plant \| MW		7.4
Amount of distribution			0	100	200	200
Tax equity financing commitment		$ 15,000
REI Partnership Flip Transaction \| LIPA Yaphank Project
Tax Equity Financings
Capacity of plant \| MW	7.4
Amount of distribution			$ 200	$ 200	$ 300	$ 300
Tax equity financing commitment	$ 12,400