XML 78 R68.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loan Participations Payable, net (Details) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 USD ($) loan | Dec. 31, 2017 USD ($) loan
Loan Participations Payable, net [Line Items] |  |
Unamortized discounts and deferred financing costs, net | $ (58,796) | $ (63,591)
Loan participations payable, net | 14,709 | 102,425
Loans receivable | 934,507 | $ 1,211,079
Loan participations payable, net |  |
Loan Participations Payable, net [Line Items] |  |
Loan participations payable, gross | $ 93,800 |
Number of loan participations repaid | loan | 1 |
Loans receivable | $ 93,600 |
Number of loan participations payable | loan | 1 | 2
Weighted average interest rate (as a percent) | 6.60% | 6.50%
Loan participations payable, net |  |
Loan Participations Payable, net [Line Items] |  |
Loan participations payable, gross | $ 14,938 | $ 102,737
Unamortized discounts and deferred financing costs, net | (229) | (312)
Loan participations payable, net |  |
Loan Participations Payable, net [Line Items] |  |
Loans receivable | $ 14,700 | $ 102,300

X
- Definition Debt Instrument, Unamortized Discount (Premium) and Deferred Financing Costs, Net + References No definition available. + Details
Name: | star_DebtInstrumentUnamortizedDiscountPremiumandDeferredFinancingCostsNet
Namespace Prefix: | star_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loan Participations Payable, gross + References No definition available. + Details
Name: | star_LoanParticipationsPayablegross
Namespace Prefix: | star_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loan Participations Payable, net + References No definition available. + Details
Name: | star_LoanParticipationsPayablenet
Namespace Prefix: | star_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition [Line Items] for Loan Participations Payable, net [Table] + References No definition available. + Details
Name: | star_LoanParticipationsPayablenetLineItems
Namespace Prefix: | star_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Transfers and Servicing of Financial Liabilities, Number of Instruments + References No definition available. + Details
Name: | star_TransfersandServicingofFinancialLiabilitiesNumberofInstruments
Namespace Prefix: | star_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Transfers and Servicing of Financial Liabilities, Number of Instruments Repaid During Period + References No definition available. + Details
Name: | star_TransfersandServicingofFinancialLiabilitiesNumberofInstrumentsRepaidDuringPeriod
Namespace Prefix: | star_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=star_LoanParticipationsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=star_LoanParticipationsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=star_LoanParticipationsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |