XML 61 R49.htm IDEA: XBRL DOCUMENT v3.20.4
Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
Intangible assets, amortization expense $ 13,080 $ 16,173