2.4.0.8031 - Disclosure - Subsequent Events (Details)truefalsefalse1false USDfalsefalse$Context_6ME__30-Jun-2013http://www.sec.gov/CIK0001503707duration2013-01-01T00:00:002013-06-30T00:00:00USD_per_ShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDtruefalse$Context_0ME_12-Oct-2010_RelatedPartyTransactionsByRelatedPartyAxis_NorthStarRealtyFinanceCorpMemberhttp://www.sec.gov/CIK0001503707duration2010-10-01T00:00:002010-10-12T00:00:00falsefalseSponsorus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldinshi_NorthStarRealtyFinanceCorpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false truefalseContext_As_Of_11-Feb-2013_RelatedPartyTransactionsByRelatedPartyAxis_NorthStarRealtyFinanceCorpMember_AgreementAxis_DistributionSupportAgreementMemberhttp://www.sec.gov/CIK0001503707instant2013-02-11T00:00:000001-01-01T00:00:00falsefalseDistribution Support Agreementnshi_AgreementAxisxbrldihttp://xbrl.org/2006/xbrldinshi_DistributionSupportAgreementMembernshi_AgreementAxisexplicitMemberfalsefalseSponsorus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldinshi_NorthStarRealtyFinanceCorpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli04false USDtruefalse$Context_0ME_07-Aug-2013_SubsequentEventTypeAxis_SubsequentEventMemberhttp://www.sec.gov/CIK0001503707duration2013-08-01T00:00:002013-08-07T00:00:00falsefalseSubsequent eventus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberUSD_per_ShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$5false USDtruefalse$Context_1ME_08-Aug-2013_SubsequentEventTypeAxis_SubsequentEventMemberhttp://www.sec.gov/CIK0001503707duration2013-07-01T00:00:002013-08-08T00:00:00falsefalseSubsequent eventus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6false USDtruefalse$Context_35ME_08-Aug-2013_SubsequentEventTypeAxis_SubsequentEventMemberhttp://www.sec.gov/CIK0001503707duration2010-10-05T00:00:002013-08-08T00:00:00falsefalseSubsequent eventus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$7false USDtruefalse$Context_As_Of_02-Aug-2013_InvestmentTypeAxis_FirstMortgageMember_SubsequentEventTypeAxis_SubsequentEventMemberhttp://www.sec.gov/CIK0001503707instant2013-08-02T00:00:000001-01-01T00:00:00falsefalseSubsequent eventus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseFirst mortgage loan additional participationus-gaap_InvestmentTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FirstMortgageMemberus-gaap_InvestmentTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8false truefalseContext_0ME_07-Aug-2013_RelatedPartyTransactionsByRelatedPartyAxis_NorthStarRealtyFinanceCorpMember_AgreementAxis_DistributionSupportAgreementMember_SubsequentEventTypeAxis_SubsequentEventMemberhttp://www.sec.gov/CIK0001503707duration2013-08-01T00:00:002013-08-07T00:00:00falsefalseSubsequent eventus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseDistribution Support Agreementnshi_AgreementAxisxbrldihttp://xbrl.org/2006/xbrldinshi_DistributionSupportAgreementMembernshi_AgreementAxisexplicitMemberfalsefalseSponsorus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldinshi_NorthStarRealtyFinanceCorpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli09false USDtruefalse$Context_35ME_07-Aug-2013_RelatedPartyTransactionsByRelatedPartyAxis_NorthStarRealtyFinanceCorpMember_AgreementAxis_DistributionSupportAgreementMember_SubsequentEventTypeAxis_SubsequentEventMemberhttp://www.sec.gov/CIK0001503707duration2010-10-05T00:00:002013-08-07T00:00:00falsefalseSubsequent eventus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseDistribution Support Agreementnshi_AgreementAxisxbrldihttp://xbrl.org/2006/xbrldinshi_DistributionSupportAgreementMembernshi_AgreementAxisexplicitMemberfalsefalseSponsorus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldinshi_NorthStarRealtyFinanceCorpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_SubsequentEventLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Subsequent events2false 4nshi_CommonStockDividendDeclaredBasedOnDailyAmountPerSharenshi_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse0.001849320.00184932USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse0.001849320.00184932USD$falsetruefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalsenum:perShareItemTypedecimalRepresent the daily amount of distribution per share considered as a basis to pay monthly distributions to stockholders.No definition available.false3Daily amount of distribution accrued per share (in dollars per share)3false 4us-gaap_StockIssuedDuringPeriodSharesNewIssuesus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse2222322223falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse226257226257falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse30693069falsefalsefalse9truefalsefalse225292225292falsefalsefalsexbrli:sharesItemTypesharesNumber of new stock issued during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 false1Number of shares of common stock issued4false 4us-gaap_StockIssuedDuringPeriodValueNewIssuesus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse25412792541279USD$falsetruefalse2truefalsefalse200000200000USD$falsetruefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse23000002300000USD$falsetruefalse6truefalsefalse49000004900000USD$falsetruefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9truefalsefalse20000002000000USD$falsetruefalsexbrli:monetaryItemTypemonetaryEquity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false2Value of common stock issued5false 4nshi_NumberOfSharesIssuedToSatisfyMinimumOfferingnshi_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse222223222223falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesRepresents number of shares issued to the sponsor under the distribution support agreement to satisfy the minimum offering amount.No definition available.false1Number of shares issued to satisfy minimum offering6false 4nshi_AdditionalParticipationInterestOnLoansnshi_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7truefalsefalse800000800000falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAdditional participation interest in loan investment.No definition available.false2Additional participation interest on loans7false 4nshi_InvestmentFaceAmountnshi_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1125000011250000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7truefalsefalse33000003300000USD$falsetruefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAdditional participation interest in loan investment.No definition available.false2Amount of loanfalseSubsequent Events (Details) (USD $)NoRoundingNoRoundingNoRoundingUnKnowntruefalsefalseSheethttp://www.northstarreit.com/role/SubsequentEventsDetails97