Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Revenue:
Investment advisory and administrative fees	$ 988,058	$ 996,222	$ 867,683
Distribution and underwriter fees	89,410	102,979	103,995
Service fees	126,345	144,530	139,741
Other revenue	5,223	4,875	4,541
Total revenue	1,209,036	1,248,606	1,115,960
Expenses:
Compensation and related costs	385,395	369,927	348,897
Distribution expense	130,914	132,664	126,064
Service fee expense	113,485	124,517	116,900
Amortization of deferred sales commissions	20,441	35,773	35,533
Fund expenses	27,375	25,295	20,455
Other expenses	138,434	134,198	120,530
Total expenses	816,044	822,374	768,379
Operating income	392,992	426,232	347,581
Non-operating income (expense):
Gains and other investment income, net	18,417	19,408	13,046
Interest expense	(33,930)	(33,652)	(33,666)
Other income (expense) of consolidated CLO entity:
Gains (losses) and other investment income, net	44,706	(17,037)	0
Interest expense	(18,447)	(13,575)	0
Total non-operating income (expense)	10,746	(44,856)	(20,620)
Income before income taxes and equity in net income of affiliates	403,738	381,376	326,961
Income taxes	(142,385)	(156,844)	(126,263)
Equity in net income of affiliates, net of tax	3,415	3,042	527
Net income	264,768	227,574	201,225
Net income attributable to non-controlling and other beneficial interests	(61,303)	(12,672)	(26,927)
Net income attributable to Eaton Vance Corp. shareholders	$ 203,465	$ 214,902	$ 174,298
Earnings per share:
Basic	$ 1.76	$ 1.82	$ 1.47
Diluted	$ 1.72	$ 1.75	$ 1.40
Weighted average shares outstanding:
Basic	112,359	115,326	116,444
Diluted	115,126	119,975	122,632
Dividends declared per share	$ 0.77	$ 0.73	$ 0.66