XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Real Estate (Real Estate Available and Held for Sale) (Details) - Executed Contract with Third Party - Net Lease $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2016 USD ($) lease_asset
Real Estate Properties [Line Items] |
Net lease asset transferred | lease_asset | 1
Property transferred to held for sale, carrying value | $ | $ 0.7

X
- Definition Number of Real Estate Properties Transferred to Held for Sale + References No definition available. + Details
Name: | star_NumberofRealEstatePropertiesTransferredtoHeldforSale
Namespace Prefix: | star_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Property Transferred to Held for Sale, Aggregate, Carrying Value + References No definition available. + Details
Name: | star_PropertyTransferredtoHeldforSaleAggregateCarryingValue
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_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | star_HeldforSaleReclassificationAxis=star_ExecutedContractwithThirdPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=star_NetLeaseAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |