Project Assets - Summary of Project Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2021	Oct. 31, 2020
Project Assets [Line Items]
Project Assets, gross	$ 223,375	$ 190,627
Accumulated depreciation	(36,133)	(28,818)
Project Assets, net	187,242	161,809
Project Assets - Operating [Member]
Project Assets [Line Items]
Project Assets, gross	$ 125,464	99,351
Project Assets - Operating [Member] | Minimum [Member]
Project Assets [Line Items]
Project assets estimated useful life	5 years
Project Assets - Operating [Member] | Maximum [Member]
Project Assets [Line Items]
Project assets estimated useful life	20 years
Project Assets - Construction in progress [Member]
Project Assets [Line Items]
Project Assets, gross	$ 97,911	$ 91,276
Project Assets - Construction in progress [Member] | Minimum [Member]
Project Assets [Line Items]
Project assets estimated useful life	7 years
Project Assets - Construction in progress [Member] | Maximum [Member]
Project Assets [Line Items]
Project assets estimated useful life	20 years