Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Revenue:
Total revenue	$ 452,554	$ 406,416
Expenses:
Compensation and related costs	171,982	153,888
Distribution expense	40,003	37,508
Service fee expense	29,755	25,517
Amortization of deferred sales commissions	5,968	5,547
Fund-related expenses	11,067	9,645
Other expenses	59,060	53,181
Total expenses	317,835	285,286
Operating income	134,719	121,130
Non-operating income (expense):
Gains and other investment income, net	16,090	5,833
Interest expense	(5,888)	(6,131)
Other income (expense) of consolidated collateralized loan obligation (CLO) entities:
Gains and other investment income, net	15,563	5,441
Interest and other expense	(17,396)	(8,336)
Total non-operating income (expense)	8,369	(3,193)
Income before income taxes and equity in net income of affiliates	143,088	117,937
Income taxes	(32,578)	(27,625)
Equity in net income of affiliates, net of tax	2,325	1,948
Net income	112,835	92,260
Net income attributable to non-controlling and other beneficial interests	(8,850)	(5,459)
Net income attributable to Eaton Vance Corp. shareholders	$ 103,985	$ 86,801
Earnings per share:
Basic	$ 0.95	$ 0.77
Diluted	$ 0.91	$ 0.75
Weighted average shares outstanding:
Basic	109,380	112,255
Diluted	114,688	115,516
Management fees [Member]
Revenue:
Total revenue	$ 394,801	$ 350,750
Distribution and underwriter fees [Member]
Revenue:
Total revenue	21,578	23,090
Service fees [Member]
Revenue:
Total revenue	33,939	29,360
Other revenue [Member]
Revenue:
Total revenue	$ 2,236	$ 3,216