Quarterly report pursuant to Section 13 or 15(d)

Schedule of Restricted Cash and Cash Equivalents (Details)

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Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash and Cash Equivalents Held By Broker Counterparties For Securities Trading Activity $ 12,250 $ 12,000
Restricted Cash and Cash equivalents Held by Broker Counterparties For Derivatives Trading Activity 252,474 211,989
Restricted Cash and Cash Equivalents Held By Repurchase Counterparties as Restricted Collateral 118,958 112,435
Restricted Cash and Cash Equivalents Held by Broker and Repurchase Counterparties 383,682 336,424
Restricted Cash and Cash Equivalents, Noncurrent 347 347
Restricted Cash and Cash Equivalents $ 384,029 $ 336,771