Intangible Assets 3 (Details) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Oct. 31, 2013
Amortizing intangible assets:
Accumulated amortization	$ (72,719)	$ (68,001)
Intangible assets
Gross intangible assets	142,535	142,535
Accumulated amortization	(72,719)	(68,001)
Intangible assets, net	69,816	74,534
Mutual Fund Management Contract Acquired [Member]
Non-amortizing intangible assets:
Net carrying amount	6,708	6,708
Client Relationships Acquired [Member]
Amortizing intangible assets:
Gross carrying amount	133,927	133,927
Accumulated amortization	(72,325)	(67,703)
Net carrying amount	61,602	66,224
Intangible assets
Accumulated amortization	(72,325)	(67,703)
Intellectual Property Acquired [Member]
Amortizing intangible assets:
Gross carrying amount	1,000	1,000
Accumulated amortization	(223)	(191)
Net carrying amount	777	809
Intangible assets
Accumulated amortization	(223)	(191)
Trademark Acquired [Member]
Amortizing intangible assets:
Gross carrying amount	900	900
Accumulated amortization	(171)	(107)
Net carrying amount	729	793
Intangible assets
Accumulated amortization	$ (171)	$ (107)