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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Cash flows from operating activities:    
Net loss $ (54,997) $ (76,246)
Adjustments to reconcile net loss to net cash used in operating activities:    
Share-based compensation 5,831 3,165
Depreciation and amortization 12,036 11,103
Non-cash interest expense on finance obligations 2,071 2,099
Unrealized loss (gain) on derivitive contract 114 (523)
Operating lease costs 744 779
Operating lease payments (644) (730)
Impairment of property, plant and equipment and project assets 2,375 976
Unrealized foreign currency (gains) losses (16) 578
Other, net (36) (134)
(Increase) decrease in operating assets:    
Accounts receivable (1,562) (1,382)
Unbilled receivables (21,164) (242)
Inventories 3,615 (20,021)
Other assets (10,577) (6,154)
(Decrease) increase in operating liabilities:    
Accounts payable (1,486) 2,568
Accrued liabilities (4,320) 8,057
Deferred revenue (20,654) 11,400
Net cash used in operating activities (88,670) (64,707)
Cash flows from investing activities:    
Capital expenditures (16,903) (10,395)
Project asset expenditures (19,753) (18,693)
Maturity of held-to-maturity debt securities 63,330  
Purchases of held-to-maturity debt securities (138,244)  
Net cash used in investing activities (111,570) (29,088)
Cash flows from financing activities:    
Repayment of debt (4,528) (4,857)
Expenses related to common stock issued for stock plans 21 26
Contributions received from sale of noncontrolling interest   12,419
Return of capital to noncontrolling interest   (496)
Distribution to noncontrolling interest (249) (95)
Payments for taxes related to net share settlement of equity awards (337) (286)
Common stock issuance, net of fees 2,667 118,264
Payment of preferred dividends (1,600) (1,600)
Net cash (used in) provided by financing activities (4,026) 123,375
Effects on cash from changes in foreign currency rates 296 (240)
Net (decrease) increase in cash, cash equivalents and restricted cash (203,970) 29,340
Cash, cash equivalents and restricted cash-beginning of period 481,044 460,212
Cash, cash equivalents and restricted cash-end of period 277,074 489,552
Supplemental cash flow disclosures:    
Cash interest paid 663 815
Noncash financing and investing activity:    
Recognition of operating lease liabilities 2,147  
Recognition of operating lease right-of-use assets 2,147  
Noncash reclassifications from inventory to project assets   4,217
Noncash reclassifications from other assets to project assets   2,375
Accrued purchase of fixed assets, cash to be paid in subsequent period 3,060 848
Accrued purchase of project assets, cash to be paid in subsequent period $ 2,145 $ 5,085