XML 34 R67.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Commitments and Contingencies (Narrative) (Details) | 3 Months Ended
--- | ---
Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract] |
Percentage of capital committed to strategic investments that may be drawn down | 100.00%

X
- Definition Represents the percentage of capital committed to strategic investments by the entity that may be drawn down. + References No definition available. + Details
Name: | star_PercentageOfCapitalCommittedThatMayBeDrawnDown
Namespace Prefix: | star_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration