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Consolidated Statements of Equity (Deficit) - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Performance Share Units [Member]
Common Stock [Member]
Deferred Share Units [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Performance Share Units [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Performance Share Units [Member]
Retained Earnings [Member]
Deferred Share Units [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Performance Share Units [Member]
AOCI Attributable to Parent [Member]
Deferred Share Units [Member]
AOCI Attributable to Parent [Member]
Performance Share Units [Member]
Deferred Share Units [Member]
Total
Balance (in shares) at Nov. 30, 2020     330,412                      
Balance at Nov. 30, 2020     $ 1,972,029   $ 81,203     $ (1,918,629)     $ (23,876)     $ 110,727
Share-based compensation     $ 0   8,235     0     0     8,235
Performance share units (PSUs) settled in shares (in shares) 574                     574,379    
Performance share units (PSUs) settled in shares $ 1,460     $ (1,460)   $ 0     $ 0     $ 0    
Stock options exercised (in shares)     1,430                      
Stock options exercised     $ 5,031   (5,031)     0     0     0
Withholding tax on PSUs     0   (731)     0     0     (731)
Net loss     0   0     (40,536)     0     (40,536)
Other comprehensive income (loss)     0   0     0     587     587
Other comprehensive income (loss)     $ 0   0     0     587     587
Balance (in shares) at Nov. 30, 2021     332,416                      
Balance at Nov. 30, 2021     $ 1,978,520   82,216     (1,959,165)     (23,289)     78,282
Share-based compensation     $ 0   8,214     0     0     8,214
Performance share units (PSUs) settled in shares (in shares) 430   53                 430,045    
Performance share units (PSUs) settled in shares $ 1,731   $ 249 (1,731) (249) $ 0     $ 0     $ 0    
Stock options exercised (in shares)     854                      
Stock options exercised     $ 3,462   (3,462)     0     0     0
Withholding tax on PSUs     0   (2,122)     0     0     (2,122)
Net loss     0   0     (53,343)     0     (53,343)
Other comprehensive income (loss)     0   0     0     (1,128)     (1,128)
Other comprehensive income (loss)     $ 0   0     0     (1,128)     (1,128)
Balance (in shares) at Nov. 30, 2022     333,753                      
Balance at Nov. 30, 2022     $ 1,983,962   82,866     (2,012,508)     (24,417)     29,903
Share-based compensation     $ 0   8,731     0     0     $ 8,731
Performance share units (PSUs) settled in shares (in shares) 48                     0    
Performance share units (PSUs) settled in shares   $ 246   $ (246)     $ 0     $ 0     $ 0  
Stock options exercised (in shares)     446                     1,914,311
Stock options exercised     $ 2,730   (2,730)     0     0     $ 0
Net loss     0   0     (46,803)     0     (46,803)
Other comprehensive income (loss)     0   0     0     (54)     (54)
Other comprehensive income (loss)     $ 0   0     0     (54)     (54)
Balance (in shares) at Nov. 30, 2023     334,247                      
Balance at Nov. 30, 2023     $ 1,986,938   $ 88,621     $ (2,059,311)     $ (24,471)     $ (8,223)