2.4.0.6 Html 42 152 1 false 12 0 false 4 false false R1.htm 101 - Document - Document and Entity Information Sheet http://eastas.com/taxonomy/role/DocumentDocumentandEntityInformation Document and Entity Information true false R2.htm 103 - Statement - Condensed Balance Sheets Sheet http://eastas.com/taxonomy/role/StatementOfFinancialPositionUnclassified-RealEstateOperations Condensed Balance Sheets false false R3.htm 104 - Statement - Condensed Balance Sheets (Parenthetical) Sheet http://eastas.com/taxonomy/role/StatementOfFinancialPositionUnclassified-RealEstateOperationsParenthetical Condensed Balance Sheets (Parenthetical) false false R4.htm 105 - Statement - Condensed Statements of Operations Sheet http://eastas.com/taxonomy/role/StatementOfIncomeRealEstateExcludingREITs Condensed Statements of Operations false false R5.htm 106 - Statement - Condensed Statements of Operations (Parenthetical) Sheet http://eastas.com/taxonomy/role/StatementOfIncomeRealEstateExcludingREITsParenthetical Condensed Statements of Operations (Parenthetical) false false R6.htm 107 - Statement - Statement of Members' Deficiency Sheet http://eastas.com/taxonomy/role/StatementOfPartnersCapital Statement of Members' Deficiency false false R7.htm 108 - Statement - Condensed Statements of Cash Flows Sheet http://eastas.com/taxonomy/role/StatementOfCashFlowsIndirectRealEstate Condensed Statements of Cash Flows false false R8.htm 109 - Disclosure - Interim Period Reporting Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsQuarterlyFinancialInformationTextBlock Interim Period Reporting false false R9.htm 110 - Disclosure - Organization Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock Organization false false R10.htm 111 - Disclosure - Lease Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlock Lease false false R11.htm 112 - Disclosure - Mortgages Payable Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsMortgagesPayableTextBlock Mortgages Payable false false R12.htm 113 - Disclosure - Supervisory Services Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock Supervisory Services false false R13.htm 114 - Disclosure - Subsequent Events Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsSubsequentEventsTextBlock Subsequent Events false false R14.htm 115 - Disclosure - Fair Value Measurements Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlock Fair Value Measurements false false R15.htm 116 - Disclosure - Offering Costs and Formation Transaction Expenses Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsOfferingCostsAndFormationTransactionExpensesTextBlock Offering Costs and Formation Transaction Expenses false false R16.htm 117 - Disclosure - Offering Costs and Formation Transaction Expenses (Tables) Sheet http://eastas.com/taxonomy/role/NotesToFinancialStatementsOfferingCostsAndFormationTransactionExpensesTextBlockTables Offering Costs and Formation Transaction Expenses (Tables) false false R17.htm 118 - Disclosure - Lease - Additional Information (Detail) Sheet http://eastas.com/taxonomy/role/DisclosureLeaseAdditionalInformation Lease - Additional Information (Detail) false false R18.htm 119 - Disclosure - Mortgages Payable - Additional Information (Detail) Sheet http://eastas.com/taxonomy/role/DisclosureMortgagesPayableAdditionalInformation Mortgages Payable - Additional Information (Detail) false false R19.htm 120 - Disclosure - Supervisory Services - Additional Information (Detail) Sheet http://eastas.com/taxonomy/role/DisclosureSupervisoryServicesAdditionalInformation Supervisory Services - Additional Information (Detail) false false R20.htm 121 - Disclosure - Fair Value Measurements - Additional Information (Detail) Sheet http://eastas.com/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformation Fair Value Measurements - Additional Information (Detail) false false R21.htm 122 - Disclosure - Offering Costs and Formation Transaction Expenses - Additional Information (Detail) Sheet http://eastas.com/taxonomy/role/DisclosureOfferingCostsAndFormationTransactionExpensesAdditionalInformation Offering Costs and Formation Transaction Expenses - Additional Information (Detail) false false R22.htm 123 - Disclosure - Offering Costs and Formation Transaction Expenses - Effect of Deferred Costs and Formation Transaction Expenses on Financial Statements (Detail) Sheet http://eastas.com/taxonomy/role/DisclosureOfferingCostsAndFormationTransactionExpensesEffectOfDeferredCostsAndFormationTransactionExpensesOnFinancialStatements Offering Costs and Formation Transaction Expenses - Effect of Deferred Costs and Formation Transaction Expenses on Financial Statements (Detail) false false All Reports Book All Reports Process Flow-Through: 103 - Statement - Condensed Balance Sheets Process Flow-Through: Removing column 'Sep. 30, 2011' Process Flow-Through: Removing column 'Dec. 31, 2010' Process Flow-Through: 104 - Statement - Condensed Balance Sheets (Parenthetical) Process Flow-Through: Removing column 'Sep. 30, 2011' Process Flow-Through: 105 - Statement - Condensed Statements of Operations Process Flow-Through: Removing column '6 Months Ended Jun. 30, 2012' Process Flow-Through: Removing column '12 Months Ended Dec. 31, 2011' Process Flow-Through: 106 - Statement - Condensed Statements of Operations (Parenthetical) Process Flow-Through: Removing column 'Dec. 31, 2011' Process Flow-Through: 107 - Statement - Statement of Members' Deficiency Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: Removing column '6 Months Ended Jun. 30, 2012' Process Flow-Through: Removing column '9 Months Ended Sep. 30, 2011' Process Flow-Through: 108 - Statement - Condensed Statements of Cash Flows Process Flow-Through: Removing column '12 Months Ended Dec. 31, 2011' ck0000090794-20120930.xml ck0000090794-20120930.xsd ck0000090794-20120930_cal.xml ck0000090794-20120930_def.xml ck0000090794-20120930_lab.xml ck0000090794-20120930_pre.xml true true