Earnings Per Share - Summarization of Company's Class A and Class B Common and Treasury Shares (Detail) - shares	Oct. 31, 2015	Oct. 31, 2014
Class A Common Stock [Member]
Class of Stock [Line Items]
Authorized Shares	128,000,000	128,000,000
Issued Shares	42,281,920	42,281,920
Outstanding Shares	25,693,564	25,603,452
Treasury Shares	16,588,356	16,678,468
Class B Common Stock [Member]
Class of Stock [Line Items]
Authorized Shares	69,120,000	69,120,000
Issued Shares	34,560,000	34,560,000
Outstanding Shares	22,119,966	22,119,966
Treasury Shares	12,440,034	12,440,034