XML 112 R101.htm IDEA: XBRL DOCUMENT v3.4.0.3
COMMITMENTS, CONTINGENCIES AND GUARANTEES, Guarantees (Details)
6 Months Ended
Mar. 31, 2016
USD ($)
Fund
Sep. 30, 2015
USD ($)
Mar. 31, 2008
USD ($)
Guarantees [Abstract]      
Number of funds offering guaranteed performance to various third-parties on certain obligations | Fund 1    
Low-income housing tax credit fund financing asset $ 24,500,000    
Amount of liability related to the low-income housing tax credit fund financing asset 24,500,000    
Interest rate swap guarantee      
Guarantees [Abstract]      
Current exposure of guarantees 13,100,000    
Estimated total potential exposure of guarantee 51,100,000    
Performance guarantees for completion of trades with counterparties      
Guarantees [Abstract]      
Current exposure of guarantees 0    
Letter of credit guarantee      
Guarantees [Abstract]      
Current exposure of guarantees     $ 8,000,000
Securities Industry Protection Corporation (SIPC)      
Guarantees [Abstract]      
SIPC fund securities per customer limit (up to) 500,000    
Per customer upper limit claims for cash balances 250,000    
Raymond James & Associates Inc      
Guarantees [Abstract]      
Excess SIPC insured amount upper limit 750,000,000    
Excess SIPC Sub-limit per customer cash above basic SIPC 1,900,000.0    
Project partnerships sold guarantee      
Guarantees [Abstract]      
Current exposure of guarantees 2,000,000    
Delivery of certain tax credits and other tax benefits guarantee      
Guarantees [Abstract]      
Current exposure of guarantees $ 29,000,000    
Number of years under the guarantee to deliver a certain amount of tax credits and other tax benefits 6 years    
Mortgages | 5.70% mortgage notes payable on our headquarters office complex, due 2023      
Guarantees [Abstract]      
Senior notes payable $ 35,584,000 $ 37,716,000