XML 53 R44.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Summary of Significant Accounting Policies - ASU 2015-03 (Details) $ in Millions | Dec. 31, 2015 USD ($)
--- | ---
Debt Instrument [Line Items] |
Deferred finance costs, current, net | $ (25.1)
Obligations |
Debt Instrument [Line Items] |
Deferred finance costs, current, net | 24.9
Loan Participations Payable |
Debt Instrument [Line Items] |
Deferred finance costs, current, net | $ 0.2

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
- Definition Net amount of current deferred finance costs capitalized at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsCurrentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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