XML 128 R82.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt Obligations, net (Debt Covenants) (Details)
 12 Months Ended
Dec. 31, 2014
Unsecured Credit Facilities  
Debt Instrument [Line Items]  
Minimum ratio of unencumbered assets to unsecured indebtedness 1.2star_DebtInstrumentCovenantRatioOfUnencumberedAssetsToUnsecuredIndebtedness
/ us-gaap_LongtermDebtTypeAxis
= star_UnsecuredCreditFacilitiesMember
Total secured credit facilities and term loans  
Debt Instrument [Line Items]  
Multiple of the minimum collateral coverage on outstanding borrowings 1.25star_DebtInstrumentCovenantMultipleofMinimumCollateralCoverageonOutstandingBorrowings
/ us-gaap_LongtermDebtTypeAxis
= star_SecuredCreditFacilitiesMember
Percentage of REIT taxable income permitted for distribution under debt covenants 100.00%star_DebtInstrumentCovenantPercentageOfTaxableIncomePermittedForDistributionIfReitClassificationIsMaintained
/ us-gaap_LongtermDebtTypeAxis
= star_SecuredCreditFacilitiesMember