Schedule III - Real Estate and Accumulated Depreciation 2 (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Total gross cost | $ 906,850 | $ 833,203 | $ 782,276 | $ 722,565 |
| Real Estate Held for Sale | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Real estate held for sale, net | $ 9,027 | $ 8,786 | ||
| Building | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Depreciable life | shorter of the useful life of the asset or 39 years | |||
| Depreciable life | 39 years | |||
| Improvements | Minimum | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Depreciable life | 5 years | |||
| Improvements | Maximum | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Depreciable life | 20 years |
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- Definition Disposal group including discontinued operation real estate investment property net. No definition available.
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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount, before accumulated depreciation, of real estate investments for entities with a substantial portion of business acquiring and holding investment real estate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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