Schedule III - Real Estate and Accumulated Depreciation - Change in Balance of Real Estate (Parenthetical) (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2015 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Impairment charge | $ 600 | $ 14,000 | $ 622 | $ 14,238 |
| Roseville [Member] | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Impairment charge | 14,200 | $ 14,200 | ||
| Real Estate Held for Sale [Member] | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Real estate held for sale, gross | 1,899 | |||
| Real Estate Held for Sale [Member] | Dayton, Ohio Office Building [Member] | ||||
| SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] | ||||
| Real estate held for sale, gross | $ 1,900 | |||
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- Definition Disposal group including discontinued operation real estate investment property at cost. No definition available.
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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