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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Apr. 30, 2022 | Oct. 31, 2021
--- | --- | ---
Common stock, par value | $ 0.0001 | $ 0.0001
Common stock, shares authorized | 500,000,000 | 500,000,000
Common stock, shares issued | 386,608,869 | 366,618,693
Common stock, shares outstanding | 386,608,869 | 366,618,693
Treasury stock, shares | 99,664 | 73,430
Assets | $ 946,216 | $ 875,248
Cash | 467,774 | 432,213
Accounts receivable, net | 15,466 | 14,730
Unbilled receivables | 10,205 | 8,924
Operating lease right-of-use assets, net | 7,658 | 8,109
Project assets, net | 239,864 | 223,277
Current portion of operating lease liabilities | 946 | 1,032
Accrued liabilities | 24,011 | 16,099
Long-term operating lease liabilities | 7,709 | 8,093
Total liabilities | 185,812 | 169,923
Variable interest entity ("VIE") |  |
Assets | 106,748 | 54,375
Cash | 2,956 | 1,364
Accounts receivable, net | 731 |
Unbilled receivables | 1,042 |
Operating lease right-of-use assets, net | 1,188 |
Project assets, net | 100,831 | 53,012
Current portion of operating lease liabilities | 157 |
Accrued liabilities | 41 |
Long-term operating lease liabilities | 1,478 |
Total liabilities |  | 0
Series B Preferred Stock |  |
Preferred Stock, Liquidation Preference, Value | $ 64,020 | $ 64,020

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