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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Significant Accounting Policies [Line Items] |  |  |  |
Reclassifying other income to real estate operating expense |  | $ 93,000 |  | $ 137,000
Federal Deposit Insurance Corporation deposit insurance limit per institution | $ 250,000 |  | $ 250,000 |
Amortization expense for intangible assets | 0 | 1,380,000 | 3,735,000 | 3,289,000
Fully amortized and written off intangible assets | 7,471,000 |  | 7,471,000 |
Depreciation expense | 7,635,000 | 4,340,000 | 15,427,000 | 8,469,000
Advertising expenses | 443,000 | 311,000 | 890,000 | 623,000
Income tax expense | 0 | $ 0 | $ 0 | $ 0
Taxable income distributable to stockholders |  |  | 90.00% |
Net deferred costs | 9,226,000 |  | $ 9,226,000 |
Natural Disasters and Other Insurable Events |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Rent revenue recognized | $ 38,000 |  | $ 113,000 |
Building and Building Improvements |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Depreciable Lives |  |  | 40 years |
Leases Acquired In Place |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Acquisition of above-market in-place leases |  |  | $ 0 |
Maximum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Cash and cash equivalents maturity period |  |  | 3 months |
Maximum | Equipment and Fixtures |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Depreciable Lives |  |  | 10 years |
Minimum | Equipment and Fixtures |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Depreciable Lives |  |  | 5 years |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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