Fair Value of Investments (Details 1) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets, at fair value (Beginning Balance)	$ 30,509	$ 0
Total assets, at fair value, Purchases/Issuances	10,000	30,000
Total assets, at fair value, Sales/Redemptions/Settlements	0	0
Total assets, at fair value, Total Realized and Change in Unrealized Gains (Losses)	1,517	509
Total assets, at fair value, Transfers to (from) Level 3	0	0
Total assets, at fair value (Ending Balance)	42,026	30,509
Total assets, at fair value, Assets Measured on Recurring Basis, Change in Unrealized Gains/Losses Relating to Assets and Liabilities Still Held	1,517	509
Collateralized Loan Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets, at fair value (Beginning Balance)	30,509	0
Total assets, at fair value, Purchases/Issuances	10,000	30,000
Total assets, at fair value, Sales/Redemptions/Settlements	0	0
Total assets, at fair value, Total Realized and Change in Unrealized Gains (Losses)	1,517	509
Total assets, at fair value, Transfers to (from) Level 3	0	0
Total assets, at fair value (Ending Balance)	42,026	30,509
Total assets, at fair value, Assets Measured on Recurring Basis, Change in Unrealized Gains/Losses Relating to Assets and Liabilities Still Held	$ 1,517	$ 509