| Quarterly Financial Information [Text Block] |
Condensed Quarterly Financial Data (Unaudited) Detailed below is unaudited quarterly financial data for the years ended December 31, 2014 and 2013. | | | | | | | | | | | | | | | | | | Three Month Period Ended March 31, 2014 | | Three Month Period Ended June 30, 2014 | | Three Month Period Ended September 30, 2014(1) | | Three Month Period Ended December 31, 2014 | (In thousands except per share amounts) | | | | | | | | INVESTMENT INCOME | | | | | | | | Interest income | $ | 21,496 |
| | $ | 20,996 |
| | $ | 22,353 |
| | $ | 28,688 |
| Other investment income | — |
| | — |
| | 168 |
| | 150 |
| Total investment income | 21,496 |
| | 20,996 |
| | 22,521 |
| | 28,838 |
| EXPENSES | | | | | | | | Base management fee | 2,364 |
| | 2,368 |
| | 3,056 |
| | 2,963 |
| Incentive fee | — |
| | — |
| | 1,400 |
| | — |
| Interest expense | 2,627 |
| | 2,416 |
| | 2,179 |
| | 2,705 |
| Other investment related expenses | 430 |
| | 1,232 |
| | 1,217 |
| | 1,810 |
| Other operating expenses | 1,994 |
| | 1,974 |
| | 2,070 |
| | 2,295 |
| Total expenses | 7,415 |
| | 7,990 |
| | 9,922 |
| | 9,773 |
| NET INVESTMENT INCOME | 14,081 |
| | 13,006 |
| | 12,599 |
| | 19,065 |
| NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY | | | | | | | | Net realized gain (loss) on investments, financial derivatives, and foreign currency transactions | 11,408 |
| | 3,684 |
| | (8,483 | ) | | (2,447 | ) | Change in net unrealized gain (loss) on investments, financial derivatives, and foreign currency translation | (2,651 | ) | | 4,514 |
| | 9,031 |
| | (13,858 | ) | NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY | 8,757 |
| | 8,198 |
| | 548 |
| | (16,305 | ) | NET INCREASE IN EQUITY RESULTING FROM OPERATIONS | 22,838 |
| | 21,204 |
| | 13,147 |
| | 2,760 |
| LESS: NET INCREASE IN EQUITY RESULTING FROM OPERATIONS ATTRIBUTABLE TO NON-CONTROLLING INTERESTS | 203 |
| | 257 |
| | 199 |
| | 123 |
| NET INCREASE IN SHAREHOLDERS' EQUITY RESULTING FROM OPERATIONS | $ | 22,635 |
| | $ | 20,947 |
| | $ | 12,948 |
| | $ | 2,637 |
| NET INCREASE IN SHAREHOLDERS' EQUITY RESULTING FROM OPERATIONS PER SHARE: | | | | | | | | Basic and Diluted(2) | $ | 0.88 |
| | $ | 0.81 |
| | $ | 0.46 |
| | $ | 0.08 |
|
| | (1) | Prior period conformed to current period presentation. |
| | (2) | For the year ended December 31, 2014 the sum of EPS for the four quarters of the year does not equal EPS as calculated for the entire year (see Note 11) as a result of issuances of common shares and LTIP units during the year, as EPS is calculated using average shares outstanding during the period. |
| | | | | | | | | | | | | | | | | | Three Month Period Ended March 31, 2013 | | Three Month Period Ended June 30, 2013 | | Three Month Period Ended September 30, 2013 | | Three Month Period Ended December 31, 2013 | (In thousands except per share amounts) | | | | | | | | INVESTMENT INCOME | | | | | | | | Interest income | $ | 18,382 |
| | $ | 20,335 |
| | $ | 24,069 |
| | $ | 22,954 |
| Other investment income | — |
| | — |
| | — |
| | — |
| Total investment income | 18,382 |
| | 20,335 |
| | 24,069 |
| | 22,954 |
| EXPENSES | | | | | | | | Base management fee | 1,967 |
| | 2,405 |
| | 2,378 |
| | 2,365 |
| Incentive fee | 2,055 |
| | 1,182 |
| | 2,038 |
| | 3,091 |
| Interest expense | 2,142 |
| | 2,582 |
| | 3,277 |
| | 3,024 |
| Other investment related expenses | — |
| | 327 |
| | 85 |
| | 84 |
| Other operating expenses | 1,649 |
| | 1,671 |
| | 1,885 |
| | 1,878 |
| Total expenses | 7,813 |
| | 8,167 |
| | 9,663 |
| | 10,442 |
| NET INVESTMENT INCOME | 10,569 |
| | 12,168 |
| | 14,406 |
| | 12,512 |
| NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY | | | | | | | | Net realized gain (loss) on investments, financial derivatives, and foreign currency transactions | 12,592 |
| | 5,671 |
| | 4,289 |
| | (4,550 | ) | Change in net unrealized gain (loss) on investments, financial derivatives, and foreign currency translation | 17,585 |
| | (6,134 | ) | | (6,872 | ) | | 7,126 |
| NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY | 30,177 |
| | (463 | ) | | (2,583 | ) | | 2,576 |
| NET INCREASE IN EQUITY RESULTING FROM OPERATIONS | 40,746 |
| | 11,705 |
| | 11,823 |
| | 15,088 |
| LESS: NET INCREASE IN EQUITY RESULTING FROM OPERATIONS ATTRIBUTABLE TO NON-CONTROLLING INTERESTS | 411 |
| | 105 |
| | 96 |
| | 226 |
| NET INCREASE IN SHAREHOLDERS' EQUITY RESULTING FROM OPERATIONS | $ | 40,335 |
| | $ | 11,600 |
| | $ | 11,727 |
| | $ | 14,862 |
| NET INCREASE IN SHAREHOLDERS' EQUITY RESULTING FROM OPERATIONS PER SHARE: | | | | | | | | Basic and Diluted(1) | $ | 1.94 |
| | $ | 0.49 |
| | $ | 0.45 |
| | $ | 0.58 |
|
| | (1) | For the year ended December 31, 2013 the sum of EPS for the four quarters of the year does not equal EPS as calculated for the entire year (see Note 11) as a result of issuances of common shares and LTIP units during the year, as EPS is calculated using average shares outstanding during the period. |
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