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Commitment and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 Property sqft Buildings | Dec. 31, 2011 | Dec. 31, 2010
Commitments And Contingencies [Line Items] |  |  |
Number of leased properties granting the tenants options to purchase the property | 7 |  |
Letter of credit and performance bonds in the aggregate amount | $ 9,546 |  |
Development of industrial buildings | 3 |  |
Development of industrial buildings in Square feet | 1,500,000 |  |
Estimated construction cost | 107,723 |  |
Estimated construction cost to be funded | 45,793 |  |
Operating and ground lease expense | $ 1,565 | $ 1,955 | $ 3,047

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- Details
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- Definition Estimated Total Construction Costs of Development Projects. + References No definition available. + Details
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- Definition Estimated Construction Cost To Be Funded + References No definition available. + Details
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- Definition Number Of Buildings Under Construction + References No definition available. + Details
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- Definition The number of operating leases which contain options to purchase the property. + References No definition available. + Details
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- Definition Square Feet Under Development + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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