XML 109 R85.htm IDEA: XBRL DOCUMENT v3.5.0.2
Derivative Financial Instruments Derivative Financial Instruments (Derivative Instruments and Hedging Activities Disclosure) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Derivative [Line Items]      
Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged) $ (500) $ 600 $ (3,800)
Gain or (Loss)Recognized in OCI-Effective Portion (3,375) 0 0
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member]      
Derivative [Line Items]      
Gain or (Loss)Recognized in OCI-Effective Portion (3,859)    
Gain or (Loss) Reclassified from OCI into Income-Effective Portion (2,436)    
Gain or (Loss) Recognized-Ineffective Portion (24)    
Other Income (Expense) [Member] | Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]      
Derivative [Line Items]      
Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged) $ 883 $ (615) $ 3,769