Income Taxes	3 Months Ended
Jan. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	14. Income Taxes The provision for income taxes was $36.7 million and $36.8 million, or 37.3 percent and 37.8 percent of pre-tax income, for the three months ended January 31, 2017 and 2016, respectively. The provision for income taxes in the three months ended January 31, 2017 and 2016 is comprised of federal, state, and foreign taxes. The differences between the Company's effective tax rate and the statutory federal rate of 35.0 percent are state income taxes, income and losses recognized by consolidated CLO entities and other non-controlling interests, and equity-based compensation plans. No valuation allowance has been recorded for deferred tax assets, reflecting management's belief that all deferred tax assets will be utilized. The Company considers the undistributed earnings of certain of its foreign corporations to be indefinitely reinvested in foreign operations as of January 31, 2017. Accordingly, no U.S. income taxes have been provided thereon. As of January 31, 2017, the Company had approximately $51.4 million of undistributed earnings in certain Canadian, United Kingdom, Australian, and Japanese foreign corporations that are not available to fund domestic operations or to distribute to shareholders unless repatriated. Repatriation would require the Company to accrue and pay U.S. corporate income taxes. The unrecognized deferred income tax liability on these un-repatriated funds, or temporary difference, is estimated to be $6.3 million at January 31, 2017. The Company does not intend to repatriate these funds, has not previously repatriated funds from these entities and has the financial liquidity to permanently leave these funds offshore. The Company is generally no longer subject to income tax examinations by U.S. federal, state, local or non-U.S. taxing authorities for fiscal years prior to fiscal 2013.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Name:	us-gaap_IncomeTaxDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration