XML 62 R47.htm IDEA: XBRL DOCUMENT v3.20.1
Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2020
Jan. 31, 2020
Apr. 30, 2019
Jan. 31, 2019
Apr. 30, 2020
Apr. 30, 2019
Accumulated Other Comprehensive Income Loss [Line Items]            
Accumulated other comprehensive income (loss), Beginning balance   $ (231,881)     $ (231,881)  
Amortization of prior service costs and net actuarial losses, net of tax of $(2,213) $ 3,898   $ 1,598   7,127 $ 2,950
Foreign currency translation adjustments (21,227) 2,793 $ (9,064) $ 16,463 (18,434) $ 7,399
Accumulated other comprehensive loss, Ending balance (243,188)       (243,188)  
Cumulative Translation Adjustments [Member]            
Accumulated Other Comprehensive Income Loss [Line Items]            
Accumulated other comprehensive income (loss), Beginning balance   (53,332)     (53,332)  
Foreign currency translation adjustments         (18,434)  
Accumulated other comprehensive loss, Ending balance (71,766)       (71,766)  
Pension And Postretirement Benefit Plan Adjustments [Member]            
Accumulated Other Comprehensive Income Loss [Line Items]            
Accumulated other comprehensive income (loss), Beginning balance   $ (178,549)     (178,549)  
Amortization of prior service costs and net actuarial losses, net of tax of $(2,213)         7,127  
Accumulated other comprehensive loss, Ending balance $ (171,422)       $ (171,422)