XML 58 R59.htm IDEA: XBRL DOCUMENT v3.3.0.814

Loans Receivable and Other Lending Investments, net (Troubled Debt Restructurings) (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($) Loan
TDR 1 [Line Items]
Financing receivable, pre modification recorded investment	$ 11,600,000	$ 7,000,000
Finance receivable, troubled loans | Loan		1
Unfunded commitments, troubled debt restructurings	0
Individually Evaluated for Impairment
TDR 1 [Line Items]
Financing receivable, pre modification recorded investment	$ 5,800,000

X

- Definition

The number of financing receivables that have been modified by troubled debt restructurings.

+ References

No definition available.

+ Details

Name:	star_FinanceReceivableTroubledLoans
Namespace Prefix:	star_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of the outstanding unfunded commitment related to financing receivables that has been modified by troubled debt restructurings.

+ References

No definition available.

+ Details

Name:	star_FinancingReceivableModificationsUnfundedCommitments
Namespace Prefix:	star_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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] for TDR 1 [Table]

+ References

No definition available.

+ Details

Name:	star_TDR1LineItems
Namespace Prefix:	star_
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: