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Single-family properties - Additional Information (Detail) (USD $) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2012
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Net book value |  | $ 3,861,422,000 | $ 505,713,000
Term of the non-cancelable lease agreements |  | 1 year |
Recorded Grant Deed of Trust Not Received [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Net book value |  | 120,645,000 | 131,819,000
Single-Family Properties [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Depreciation expense | $ 21,000 | $ 60,254,000 | $ 2,111,000

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- Definition Capital Lease Term + References No definition available. + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Details
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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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