Annual report pursuant to Section 13 and 15(d)

Schedule of Restricted Cash and Cash Equivalents (Details)

v3.6.0.2
Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash $ 408,312 $ 262,562
Restricted Cash and Cash Equivalents Held for Securities Trading Activity [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 26,310 12,550
Restricted Cash and Cash Equivalents Held for Derivatives Trading Activity [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 218,896 130,355
Restricted Cash and Cash Equivalents Pledged as Restricted Collateral for Borrowings [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 162,759 119,310
Restricted Cash and Cash Equivalents Held by Counterparties [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash 407,965 262,215
Restricted Cash and Cash Equivalents for Lease [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash $ 347 $ 347