XML 24 R24.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Organization - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  | 12 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2011 | Mar. 31, 2013 State Property | Dec. 31, 2012 State Property | Mar. 31, 2012 | Dec. 31, 2012 State Property | Dec. 31, 2011 | Dec. 31, 2010 | Apr. 29, 2011 Property | Jun. 10, 2011 Minimum | Jun. 10, 2011 Maximum | Dec. 31, 2012 Subsidiaries | Apr. 30, 2009 Common Stock Subsidiaries | Jan. 04, 2012 Series Cumulative Non-Voting Preferred Stock | Mar. 31, 2013 Series Cumulative Non-Voting Preferred Stock Person | Dec. 31, 2012 Series Cumulative Non-Voting Preferred Stock Person
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock sold |  |  |  |  |  |  |  |  |  |  |  | 20,000 |  | 125 | 125
Date of wholly owned subsidiary common stock |  | Jan. 20, 2011 |  |  | Jan. 20, 2011 |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  |  |  |  |  | 250,000 |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  |  |  |  |  |  | 100,000,000 |  |  |  |  |
Common stock for sale to public per share subject to discounts | $ 10.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock for sale to public per share pursuant to distribution reinvestment plan | $ 9.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued to RAIT NTR Holdings, LLC |  |  |  | 300,000 |  |  |  |  |  |  |  |  |  |  |
Additional shares |  | 11,300 | 25,000 |  |  |  |  |  |  |  | 300,000 |  |  |  |
Minimum offering amount |  | $ 102 | $ 3,000 | $ 3,000 | $ 3,193 | $ 0 | $ 0 |  |  |  | $ 3,000 |  |  |  |
Date of common stock sold to Independence Realty Advisors, LLC. |  | Jan. 04, 2012 |  |  | Jan. 04, 2012 |  |  |  |  |  |  |  |  |  |
Preferred stock designated |  |  |  |  |  |  |  |  |  |  |  |  | 12.50% |  | 12.50%
Number of accredited investors not affiliated by the parent company |  |  |  |  |  |  |  |  |  |  |  |  |  | 125 | 125
Number of multifamily property owned |  | 8 | 8 |  | 8 |  |  |  |  |  |  |  |  |  |
Number of units located with multifamily properties |  | 2,004 | 2,004 |  | 2,004 |  |  | 6 |  |  |  |  |  |  |
Number of states in which multifamily properties located |  | 6 | 6 |  | 6 |  |  |  |  |  |  |  |  |  |

X
- Definition Date of business acquisition. + References No definition available. + Details
Name: | ck0001466085_BusinessAcquisitionTransactionDate
Namespace Prefix: | ck0001466085_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common stock for sale to public per share pursuant to distribution reinvestment plan. + References No definition available. + Details
Name: | ck0001466085_CommonStockForSaleToPublicPerSharePursuantToDistributionReinvestmentPlan
Namespace Prefix: | ck0001466085_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common stock for sale to public per share subject to discounts. + References No definition available. + Details
Name: | ck0001466085_CommonStockForSaleToPublicPerShareSubjectToDiscounts
Namespace Prefix: | ck0001466085_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum number of shares to be sold in the primary offering. + References No definition available. + Details
Name: | ck0001466085_CommonStockShareMinimum
Namespace Prefix: | ck0001466085_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum number of common shares permitted to be issued in the primary offering. + References No definition available. + Details
Name: | ck0001466085_CommonStockSharesAuthorizedInPrimaryOffering
Namespace Prefix: | ck0001466085_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of accredited investors not affiliated by the parent company. + References No definition available. + Details
Name: | ck0001466085_NumberOfAccreditedInvestorsNotAffiliatedByParentCompany
Namespace Prefix: | ck0001466085_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued to holding company. + References No definition available. + Details
Name: | ck0001466085_NumberOfSharesIssuedToHoldingCompany
Namespace Prefix: | ck0001466085_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of states in which multifamily properties located. + References No definition available. + Details
Name: | ck0001466085_NumberOfStatesInWhichMultifamilyPropertiesLocated
Namespace Prefix: | ck0001466085_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section H + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the subsidiary or equity investee issued or sold stock, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section H + Details
Name: | us-gaap_SaleOfStockTransactionDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: 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 4: 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=6959260&loc=d3e187085-122770 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration