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Investment in Real Estate - Additional Information (Detail) $ in Thousands, ft² in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($) ft² Property | Dec. 31, 2014 USD ($) ft² Property | Dec. 31, 2013 USD ($) ft² Property
Real Estate [Line Items] |  |  |
Number of industrial properties acquired | Property | 8 | 8 | 2
Number of industrial properties acquired through acquisition of equity interest | Property |  |  | 1
Equity interest acquired |  |  | 100.00%
Gross leasable area (GLA) of industrial properties acquired | ft² | 1.9 | 1.1 | 1.1
Purchase price of acquisitions | $ 169,218 | $ 95,692 | $ 72,812
Number of Days After Acquisiton Date | 180 days |  |
Number of Industrial Properties Held for Sale | Property | 1 |  |
Square Footage of Industrial Properties Held for Sale | ft² | 0.2 |  |
Number of industrial properties sold | Property | 66 | 29 | 67
Gross leasable area (GLA) of industrial properties sold | ft² | 3.8 | 2.0 | 3.0
Proceeds from sale of industrial properties | $ 158,429 | $ 102,596 | $ 144,628
Gain on sale of real estate | 48,906 | 25,905 | 35,444
Gain on sale of real estate included in discontinued operations | $ 0 | $ 25,988 | $ 34,344
Number of sold industrial properties included in discontinued operations | Property | 0 | 29 | 67
Impairment of Real Estate | $ 626 | $ 0 | $ 2,652
Impairment of Long-Lived Assets to be Disposed of |  |  | $ 2,652
Series of Individually Immaterial Business Acquisitions [Member] |  |  |
Real Estate [Line Items] |  |  |
Number of industrial properties acquired | Property | 6 |  |
Purchase price of acquisitions | $ 122,913 |  |

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- Definition The number of sold industrial properties included in discontinued operations. + References No definition available. + Details
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- Definition The number of days after the acquisition date to complete the Section 1031 exchange and take the title of the to-be-exchanged industrial properties to be able to realize the available tax deferral under the Section 1031 exchange. + References No definition available. + Details
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- Definition Number of industrial properties held for sale. + References No definition available. + Details
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- Definition Number of Industrial Properties With Wholly Owned Equity Interest + References No definition available. + Details
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- Definition Square footage of industrial properties sold. + References No definition available. + Details
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- Definition Square Footage of Real Estate Properties Acquired. + References No definition available. + Details
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- Definition Square footage of industrial properties held for sale. + References No definition available. + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721525-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51716988&loc=d3e957-107759 + Details
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- Definition The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The number of businesses acquired by the entity during the period. + References No definition available. + Details
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- Definition The cash inflow from sale of buildings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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