Annual report pursuant to Section 13 and 15(d)

Earnings per Share of Common Stock - Additional Information (Detail)

v2.4.1.9
Earnings per Share of Common Stock - Additional Information (Detail)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Earnings Per Share [Abstract]    
Weighted average number of OP units held by the non-controlling interest 342,648hasi_WeightedAverageNumberOfOperatingPartnershipUnitsHeldByNoncontrollingInterest 461,614hasi_WeightedAverageNumberOfOperatingPartnershipUnitsHeldByNoncontrollingInterest
Unvested shares of restricted common stock 964,820us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 598,815us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount