XML 84 R74.htm IDEA: XBRL DOCUMENT v3.8.0.1

Debt Obligations, net (Debt Covenants) (Details)	3 Months Ended
	Mar. 31, 2018
Unsecured Credit Facilities
Debt Instrument [Line Items]
Minimum ratio of unencumbered assets to unsecured indebtedness (at least)	1.2
Debt instrument covenant multiple of minimum fixed charges on outstanding borrowings	1.5
2016 Senior Credit Facility
Debt Instrument [Line Items]
Multiple of the minimum collateral coverage on outstanding borrowings (at least)	1.25
2015 $325 Million Secured Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument covenant multiple of minimum fixed charges on outstanding borrowings	1.5
Multiple of the minimum collateral coverage on outstanding borrowings (at least)	1.5
Total secured credit facilities and mortgages
Debt Instrument [Line Items]
Percentage of REIT taxable income permitted for distribution under debt covenants	100.00%

X

- Definition

Represents the multiple of the minimum collateral coverage on outstanding borrowings required under the terms of the debt covenant.

+ References

No definition available.

+ Details

Name:	star_DebtInstrumentCovenantMultipleofMinimumCollateralCoverageonOutstandingBorrowings
Namespace Prefix:	star_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Debt Instrument, Covenant, Multiple of Minimum Fixed Charges on Outstanding Borrowings

+ References

No definition available.

+ Details

Name:	star_DebtInstrumentCovenantMultipleofMinimumFixedChargesonOutstandingBorrowings
Namespace Prefix:	star_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the percentage of taxable income that is permitted for distribution, under the terms of the debt covenant, if the entity maintains its REIT qualification.

+ References

No definition available.

+ Details

Name:	star_DebtInstrumentCovenantPercentageOfTaxableIncomePermittedForDistributionIfReitClassificationIsMaintained
Namespace Prefix:	star_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the minimum ratio of encumbered assets to unsecured indebtedness required under the terms of the debt covenant.

+ References

No definition available.

+ Details

Name:	star_DebtInstrumentCovenantRatioOfUnencumberedAssetsToUnsecuredIndebtedness
Namespace Prefix:	star_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=star_UnsecuredCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=star_A2016SeniorSecuredCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=star_SecuredCreditFacilityRevolverDueMarch2018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=star_SecuredCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: