Counterparty Risk (Tables)

12 Months Ended

Dec. 31, 2017

Schedule Of Percentage Of Total Collateral On Reverse Repurchase Agreements [Table Text Block]

The following table details the percentage of such collateral held by counterparties who hold greater than 15% of the aggregate $1.41 billion in collateral for various reverse repurchase agreements as of December 31, 2017. In addition to the below, unencumbered investments, on a settlement date basis, of approximately $61.3 million were held in custody at the Bank of New York Mellon Corporation as of December 31, 2017.



Dealer		% of Total Collateral on Reverse Repurchase Agreements
Royal Bank of Canada		18%

% Of Total Deposits With Dealers Held As Collateral

The following table details the percentage of collateral amounts held by dealers who hold greater than 15% of the Company's Due from Brokers, included as of December 31, 2017:



Dealer		% of Total Due from Brokers
Morgan Stanley		35%
BNP Paribas Securities Corp.		24%
J.P. Morgan Securities LLC		17%

% Of Total Receivable For Securities Sold

The following table details the percentage of amounts held by dealers who hold greater than 15% of the Company's Receivable for securities sold as of December 31, 2017:



Dealer		% of Total Receivable for Securities Sold
Bank of America Securities		28%
Nomura Securities International Inc.		26%

Schedule of Cash and Cash Equivalents [Table Text Block]

In addition, the Company held cash and cash equivalents of $47.2 million and $123.3 million as of December 31, 2017 and 2016, respectively. The below table details the concentration of cash and cash equivalents held by each counterparty:



	As of
Counterparty	December 31, 2017	December 31, 2016
BlackRock Liquidity Funds FedFund Portfolio	56%	41%
Bank of New York Mellon Corporation	37%	27%
Deutsche Bank Securities	5%	—%
Bank of America Securities	2%	—%
Goldman Sachs Financial Square Funds—Government Fund	—%	16%
Morgan Stanley Institutional Liquidity Fund—Government Portfolio	—%	16%