Income Taxes Deferred (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013
Deferred tax assets:
Stock-based compensation	$ 68,775	$ 70,189
Deferred Rent	4,349	4,615
Differences between book and tax bases of investments	1,130	5,945
Differences between book and tax bases of property	1,231	0
Compensation and benefit expense	4,977	5,143
Federal benefit of unrecognized state tax benefits	827	352
Unrealized net holding losses on investments	0	502
Other	355	533
Total deferred tax asset	81,644	87,279
Deferred tax liabilities:
Deferred sales commissions	(6,899)	(6,832)
Compensation and benefit expense	0	(198)
Differences between book and tax bases of goodwill and intangibles	(25,008)	(17,692)
Unrealized net holding gains on investments	(3,212)	0
Unrealized gains on derivative instruments	(426)	(417)
Differences between book and tax bases of property	0	(1,001)
Total deferred tax liability	(35,545)	(26,140)
Net deferred tax asset	$ 46,099	$ 61,139