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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Significant Accounting Policies [Line Items]
Federal Deposit Insurance Corporation deposit insurance limit per institution	$ 250,000		$ 250,000
Amortization expense for intangible assets	0	$ 109,000	3,735,000	$ 3,397,000
Fully amortized and written off intangible assets	7,471,000		7,471,000
Depreciation expense	7,765,000	4,594,000	23,192,000	13,064,000
Advertising expenses	435,000	318,000	1,325,000	941,000
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		$ 151,000
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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Cash and cash equivalents maturity period.

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Fully amortized and written off intangible assets.

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Percentage of ordinary taxable income distributed to stockholders.

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Significant accounting policies.

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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
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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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