Annual report pursuant to Section 13 and 15(d)

Earnings per Share of Common Stock - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Detail)

v2.4.1.9
Earnings per Share of Common Stock - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Detail) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Dec. 31, 2014
Dec. 31, 2013
Numerator:                  
Net income (loss) attributable to controlling shareholders and participating securities $ 1,462,000us-gaap_NetIncomeLoss $ 2,564,000us-gaap_NetIncomeLoss $ 2,828,000us-gaap_NetIncomeLoss $ 2,753,000us-gaap_NetIncomeLoss $ (7,330,000)us-gaap_NetIncomeLoss $ 1,842,000us-gaap_NetIncomeLoss $ (4,971,000)us-gaap_NetIncomeLoss $ 9,607,000us-gaap_NetIncomeLoss $ (10,459,000)us-gaap_NetIncomeLoss
Less: Dividends paid on participating securities               (800,000)hasi_DividendPaidOnParticipatingSecurities (300,000)hasi_DividendPaidOnParticipatingSecurities
Undistributed earnings attributable to participating securities               0hasi_UndistributedEarningsToParticipatingSecurities 0hasi_UndistributedEarningsToParticipatingSecurities
Net income (loss) attributable to controlling shareholders               $ 8,800,000hasi_NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted $ (10,800,000)hasi_NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted
Denominator:                  
Weighted-average number of common shares - basic               20,656,826us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 15,716,250us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Weighted average common shares outstanding - diluted               20,656,826us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 15,716,250us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Basic earnings per common share $ 0.05us-gaap_EarningsPerShareBasic $ 0.11us-gaap_EarningsPerShareBasic $ 0.13us-gaap_EarningsPerShareBasic $ 0.17us-gaap_EarningsPerShareBasic $ (0.48)us-gaap_EarningsPerShareBasic $ 0.11us-gaap_EarningsPerShareBasic $ (0.32)us-gaap_EarningsPerShareBasic $ 0.43us-gaap_EarningsPerShareBasic $ (0.68)us-gaap_EarningsPerShareBasic
Diluted earnings per common share $ 0.05us-gaap_EarningsPerShareDiluted $ 0.11us-gaap_EarningsPerShareDiluted $ 0.13us-gaap_EarningsPerShareDiluted $ 0.17us-gaap_EarningsPerShareDiluted $ (0.48)us-gaap_EarningsPerShareDiluted $ 0.11us-gaap_EarningsPerShareDiluted $ (0.32)us-gaap_EarningsPerShareDiluted $ 0.43us-gaap_EarningsPerShareDiluted $ (0.68)us-gaap_EarningsPerShareDiluted