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Single-family properties - Schedule of Single-Family Properties (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 Property | Dec. 31, 2012 Property
--- | --- | ---
Property Subject to or Available for Operating Lease [Line Items] |  |
Number of properties | 23,268 | 3,644
Net book value | $ 3,861,422 | $ 505,713
Single-Family Properties Being Renovated [Member] |  |
Property Subject to or Available for Operating Lease [Line Items] |  |
Number of properties | 2,744 | 1,857
Net book value | 393,975 | 261,136
Leased Single-Family Properties [Member] |  |
Property Subject to or Available for Operating Lease [Line Items] |  |
Number of properties | 17,328 | 1,164
Net book value | 2,914,947 | 158,068
Vacant Single-Family Properties Available for Lease [Member] |  |
Property Subject to or Available for Operating Lease [Line Items] |  |
Number of properties | 3,152 | 623
Net book value | 545,931 | 86,509
Single-Family Properties Held for Sale [Member] |  |
Property Subject to or Available for Operating Lease [Line Items] |  |
Number of properties | 44 |
Net book value | $ 6,569 |

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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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