TWO Quarterly report pursuant to Section 13 or 15(d)

Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 266,752	$ 688,006
Restricted Cash and Cash Equivalents Held for Securities Trading Activity [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	45,050	51,350
Restricted Cash and Cash Equivalents Held for Derivatives Trading Activity [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	155,346	219,900
Restricted Cash and Cash Equivalents Pledged as Restricted Collateral for Borrowings [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	66,296	416,696
Restricted Cash and Cash Equivalents Held by Counterparties [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	266,692	687,946
Restricted Cash and Cash Equivalents for Lease [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 60	$ 60