XML 72 R62.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Loans Receivable and Other Lending Investments, net (Troubled Debt Restructurings) (Details) $ in Millions | 3 Months Ended
--- | ---
Sep. 30, 2015 USD ($)
Financing Receivable, Impaired [Line Items] |
Recorded investment | $ 11.6
Individually Evaluated for Impairment |
Financing Receivable, Impaired [Line Items] |
Recorded investment | $ 5.8

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings before the financing receivable has been modified. + References No definition available. + Details
Name: | star_FinancingReceivablePreModificationRecordedInvestment
Namespace Prefix: | star_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_FinancingReceivableImpairedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | star_EvaluationTypeAxis=star_IndividuallyEvaluatedforImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |