Related Party Transactions (Details) - USD ($)	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Oct. 31, 2016
Sponsored Funds
Management fees	$ 214,749,000	$ 201,547,000
Distribution fees	18,281,000	17,301,000
Service fees	28,911,000	27,259,000
Shareholder services fees	702,000	588,000
Other revenue	514,000	537,000
Total	263,157,000	247,232,000
Investment advisory fees waived by the Company	3,700,000	3,800,000
Proceeds from sales	3,733,000	8,084,000
Net realized gains (losses)	203,000	135,000
Related party expenses	7,600,000	6,400,000
Accounts Receivable, Related Parties, Sponsored Funds	96,600,000		$ 88,700,000
Accounts Payable, Related Parties, Sponsored Funds	2,300,000		1,600,000
Loan to Affiliate
Loan to affiliate	5,000,000		5,000,000
Interest income earned on loan to affiliate	40,000	16,000
Interest receivable on the loan to affiliate	$ 14,000		13,000
Description of the variable interest rate on the loan to affiliate	The loan earns interest equal to the one-year Canadian Dollar Offered Rate plus 200 basis points and is payable quarterly in arrears.
Hexavest Related Parties Agreements
Sub-advisory fees paid to Hexavest	$ 32,000	80,000
Reimbursement of fund subsidies to the Company from Hexavest	100,000	100,000
Accounts Payable, Related Parties, Hexavest Subadvisory Agreement	59,000		13,000
Fees earned from Hexavest for the sale of institutional separately managed accounts	500,000	$ 500,000
Accounts Receivable, Related Parties, Hexavest Cost Reimbursement Agreement	200,000		$ 300,000
Employee Loan Program
Maximum loan amount available under the plan	$ 20,000,000