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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Cash flows from operating activities:    
Net loss $ (76,246) $ (64,877)
Adjustments to reconcile net loss to net cash used in operating activities:    
Share-based compensation 3,165 2,670
Depreciation and amortization 11,103 10,412
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 2,099 2,475
Non-cash charge for extinguishment of debt   7,156
Unrealized gain on derivative contract (523) (228)
Operating lease costs 779 761
Operating lease payments (730) (586)
Impairment of property, plant and equipment 976  
Unrealized foreign currency losses 578 873
Other non-cash transactions (134) 372
(Increase) decrease in operating assets:    
Accounts receivable (1,382) (2,584)
Unbilled receivables (242) (645)
Inventories (20,021) (13,617)
Other assets (6,154) (2,930)
Increase (decrease) in operating liabilities:    
Accounts payable 2,568 3,280
Accrued liabilities 8,057 (2,864)
Deferred revenue 11,400 2,262
Net cash used in operating activities (64,707) (41,162)
Cash flows from investing activities:    
Capital expenditures (10,395) (960)
Project asset expenditures (18,693) (21,212)
Net cash used in investing activities (29,088) (22,172)
Cash flows from financing activities:    
Repayment of debt (4,857) (91,669)
Common stock issued for stock plans and related expenses 26 (15)
Contributions received from sale of noncontrolling interest 12,419  
Return of capital to noncontrolling interest (496)  
Distribution to noncontrolling interest (95)  
Payments for taxes related to net share settlement of equity awards (286)  
Repayment of Series 1 Preferred Share Obligation   (21,541)
Common stock issuance, net of fees 118,264 156,368
Proceeds from warrant exercises, net   923
Payment of preferred dividends (1,600) (1,600)
Net cash provided by financing activities 123,375 42,466
Effects on cash from changes in foreign currency rates (240) (2)
Net increase (decrease) in cash, cash equivalents and restricted cash 29,340 (20,870)
Cash, cash equivalents and restricted cash-beginning of period 460,212 192,052
Cash, cash equivalents and restricted cash-end of period 489,552 171,182
Supplemental cash flow disclosures:    
Cash interest paid and early prepayment charge 815 8,790
Noncash financing and investing activity:    
Operating lease liabilities   1,459
Operating lease right-of-use assets   1,459
Noncash reclassifications from inventory to project assets 4,217 8,929
Noncash reclassifications from other assets to project assets 2,375  
Warrant exercises   21,170
Accrued purchase of fixed assets, cash to be paid in subsequent period 848 491
Accrued purchase of project assets, cash to be paid in subsequent period $ 5,085 $ 3,078