Quarterly report pursuant to Section 13 or 15(d)

Schedule of Restricted Cash and Cash Equivalents (Details)

v3.4.0.3
Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash $ 281,145 $ 262,562
Restricted Cash and Cash Equivalents Held for Securities Trading Activity [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 12,560 12,550
Restricted Cash and Cash Equivalents Held for Derivatives Trading Activity [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 217,695 130,355
Restricted Cash and Cash Equivalents Pledged as Restricted Collateral for Borrowings [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 50,543 119,310
Restricted Cash and Cash Equivalents Held by Counterparties [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 280,798 262,215
Restricted Cash and Cash Equivalents for Lease [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash $ 347 $ 347