Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Transactions (Offsetting Assets and Liabilities) (Details)

v3.8.0.1
Derivative Instruments and Hedging Transactions (Offsetting Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Jun. 30, 2017
Nettable derivative assets:    
Gross derivative receivable $ 20,840 $ 18,652
Amounts Netted (514) (1,065)
Cash Collateral Pledge 0 0
Net derivative receivable 20,326 17,587
Nettable derivative liabilities:    
Gross derivative payable 30,617 39,504
Amounts Netted (2,999) (1,783)
Cash Collateral Pledge (3,629) (3,139)
Net derivative payables 23,989 34,582
Open sale and purchase commitments    
Nettable derivative assets:    
Gross derivative receivable 3,259 1,625
Amounts Netted (514) (694)
Cash Collateral Pledge 0 0
Net derivative receivable 2,745 931
Nettable derivative liabilities:    
Gross derivative payable 23,213 31,568
Amounts Netted (2,999) (1,783)
Cash Collateral Pledge 0 0
Net derivative payables 20,214 29,785
Margin accounts    
Nettable derivative liabilities:    
Gross derivative payable 7,206 7,936
Amounts Netted 0 0
Cash Collateral Pledge (3,629) (3,139)
Net derivative payables 3,577 4,797
Liability Protection Plan [Member]    
Nettable derivative liabilities:    
Gross derivative payable 198
Amounts Netted 0
Cash Collateral Pledge 0
Net derivative payables 198
Options Held    
Nettable derivative assets:    
Gross derivative receivable 214 0
Amounts Netted 0 0
Cash Collateral Pledge 0 0
Net derivative receivable 214 0
Future contracts    
Nettable derivative assets:    
Gross derivative receivable 7,263 1,273
Amounts Netted 0 0
Cash Collateral Pledge 0 0
Net derivative receivable 7,263 1,273
Forward contracts    
Nettable derivative assets:    
Gross derivative receivable 10,104 15,754
Amounts Netted 0 (371)
Cash Collateral Pledge 0 0
Net derivative receivable $ 10,104 $ 15,383