XML 91 R82.htm IDEA: XBRL DOCUMENT v3.21.1

Debt Obligations, net (Debt Covenants) (Details)	Mar. 31, 2021
Unsecured Debt
Debt Instrument [Line Items]
Unencumbered assets to unsecured indebtedness ratio (at least)	1.2
Secured Debt | Senior Term Loan
Debt Instrument [Line Items]
Collateral coverage ratio (at least)	1.25
Secured Debt | Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing base asset value ratio	1.5
Cash flow to fixed charges ratio	1.5

X

- Definition

Debt Instrument Covenant Borrowing Base Asset Value Ratio

+ References

No definition available.

+ Details

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

X

- Definition

Debt Instrument, Covenant, Cash Flow To Fixed Charges Ratio

+ References

No definition available.

+ Details

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

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

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=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_DebtInstrumentAxis=star_A2016SeniorSecuredCreditFacilityDueJune2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=star_SecuredRevolvingCreditFacilityDueSeptember2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: