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Commitments
3 Months Ended
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Commitments Investment Commitments

From time to time, the Company has outstanding commitments to purchase investments and/or commitments to lend funds under bridge loans. Unfunded commitments to purchase investments were $135.7 million and $145.4 million at March 31, 2019 and December 31, 2018, respectively.