Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Summary of Management Fees, Incentive Fees and Associated Credits and Administration Fees (Parenthetical) (Detail)

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Related-Party Transactions - Summary of Management Fees, Incentive Fees and Associated Credits and Administration Fees (Parenthetical) (Detail) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Mar. 31, 2013
Jun. 30, 2014
Related Party Transactions [Abstract]      
Incentive fee paid to adviser $ 0 $ 41,037 $ 0