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Note 11 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended 36 Months Ended
Apr. 29, 2022
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2022
Aug. 02, 2021
Jul. 30, 2021
Apr. 30, 2020
Jan. 31, 2020
Income Tax Expense (Benefit), Total   $ 94,263 $ (417,956) $ 4,475          
Deferred Tax Assets, Valuation Allowance   95,727 101,555   $ 95,727        
Contract Backlog   1,300,000     1,300,000        
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total   319,753 189,861 55,403 565,000        
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total   100 300   100        
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total   128 84 $ 60          
Unrecognized Tax Benefits, Period Increase (Decrease), Total   200              
Unrecognized Tax Benefits that Would Impact Effective Tax Rate   200 500   200        
The 10.0% 2022 Notes [Member] | Senior Secured Notes [Member]                  
Debt Instrument, Redeemed, Face Amount     $ 111,200       $ 111,200    
Debt Instrument, Interest Rate, Stated Percentage     10.00% 10.00%       10.00% 10.00%
The 10.5% 2024 Notes [Member] | Senior Secured Notes [Member]                  
Debt Instrument, Redeemed, Face Amount           $ 69,700      
Debt Instrument, Interest Rate, Stated Percentage       10.50%   10.50%      
The 7.75% 2026 Notes [Member] | Senior Secured Notes [Member]                  
Debt Instrument, Redeemed, Face Amount $ 100,000                
Debt Instrument, Interest Rate, Stated Percentage 7.75%                
Reduction in Annual Interest Resulting from Debt Payoffs $ 23,000                
Federal Deferred Tax Assets Related to NOLs and Other Matters [Member]                  
Deferred Tax Assets, Valuation Allowance       $ 396,500          
Deferred Tax Assets Related to State NOLs [Member]                  
Deferred Tax Assets, Valuation Allowance       181,000          
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount     $ 78,100            
Domestic Tax Authority [Member]                  
Operating Income (Loss), Total   (306,000) (173,800) (183,000)          
Operating Income (Loss), Tax Effect   64,300 36,500 38,400          
Income Tax Expense (Benefit), Total   $ 60,064 (335,608) 0          
Open Tax Year   2018 2019 2020 2021              
Domestic Tax Authority [Member] | Between 2029 and 2038 [Member]                  
Operating Loss Carryforwards   $ 909,600,000     909,600,000        
Domestic Tax Authority [Member] | Indefinite Tax Period [Member]                  
Operating Loss Carryforwards   15,700     15,700        
State and Local Jurisdiction [Member]                  
Operating Income (Loss), Total   (80,100) (55,700) (72,500)          
Income Tax Expense (Benefit), Total   34,199 $ (82,348) $ 4,475          
Operating Loss Carryforwards   2,300,000     2,300,000        
State and Local Jurisdiction [Member] | Indefinite Tax Period [Member]                  
Operating Loss Carryforwards   51,500     51,500        
State and Local Jurisdiction [Member] | Between 2023 and 2027 [Member]                  
Operating Loss Carryforwards   411,400     411,400        
State and Local Jurisdiction [Member] | Between 2028 and 2032 [Member]                  
Operating Loss Carryforwards   1,400,000     1,400,000        
State and Local Jurisdiction [Member] | Between 2033 and 2037 [Member]                  
Operating Loss Carryforwards   369,700     369,700        
State and Local Jurisdiction [Member] | Between 2038 and 2042 [Member]                  
Operating Loss Carryforwards   $ 73,700     $ 73,700