Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Cash flows from operating activities:
Net loss	$ (46,120)	$ (45,960)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation	1,470	1,417
Depreciation and amortization	5,771	5,604
Change in fair value of common stock warrant liability		15,974
Non-cash charge for extinguishment of preferred stock obligation of subsidiary		934
Non-cash interest expense on preferred stock and debt obligations	1,066	1,566
Non-cash charge for extinguishment of debt		7,156
Operating lease costs	395	378
Operating lease payments	(372)	(284)
Impairment of property, plant and equipment	976
Unrealized foreign currency losses (gains)	(82)	848
Other non-cash transactions	(316)	628
(Increase) decrease in operating assets:
Accounts receivable	(15,972)	(458)
Unbilled receivables	(4,369)	(3,466)
Inventories	(2,529)	(8,602)
Other assets	(1,994)	(954)
(Decrease) Increase in operating liabilities:
Accounts payable	2,560	(1,887)
Accrued liabilities	10,027	(5,618)
Deferred revenue	1,735	2,407
Net cash used in operating activities	(47,754)	(30,317)
Cash flows from investing activities:
Capital expenditures	(5,331)	(204)
Project asset expenditures	(10,435)	(4,387)
Net cash used in investing activities	(15,766)	(4,591)
Cash flows from financing activities:
Repayment of debt	(2,530)	(82,292)
Common stock issued for stock plans and related expenses	26	8
Contributions received from sale of redeemable noncontrolling interest	12,419
Payments for taxes related to net share settlement of equity awards	(285)
Repayment of Series 1 Preferred Share Obligation		(21,541)
Common stock issuance, net of fees		156,363
Proceeds from sale of common stock and warrant exercises, net		654
Payment of preferred dividends and return of capital	(800)	(800)
Net cash provided by financing activities	8,830	52,392
Effects on cash from changes in foreign currency rates	(91)	58
Net (decrease) increase in cash, cash equivalents and restricted cash	(54,781)	17,542
Cash, cash equivalents and restricted cash-beginning of period	460,212	192,052
Cash, cash equivalents and restricted cash-end of period	405,431	209,594
Supplemental cash flow disclosures:
Cash interest paid and early prepayment charge	329	8,185
Noncash financing and investing activity:
Operating lease liabilities		1,336
Operating lease right-of-use assets		1,336
Noncash reclassifications from inventory to project assets	4,217	2,072
Warrant exercises		21,170
Accrued purchase of fixed assets, cash to be paid in subsequent period	1,077	47
Accrued purchase of project assets, cash to be paid in subsequent period	$ 7,640	$ 839