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Commitments And Contingencies (Schedule Of Real Estate Property) (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 sqft property | May 06, 2015 property sqft
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Real Estate Properties [Line Items] |  |
Number of buildings | 137 us-gaap_NumberOfRealEstateProperties |
Square feet of industrial buildings acquired | 10,400,000.0 us-gaap_AreaOfRealEstateProperty |
Commitments [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings |  | 8 us-gaap_NumberOfRealEstateProperties / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember
Square feet of industrial buildings acquired |  | 438,774.0 us-gaap_AreaOfRealEstateProperty / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember
Purchase Price |  | $ 58,866 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember
Assumed Debt |  | 4,808 trno_DebtAssumedOnProperties / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember
Northern New Jersey/New York City [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings | 41 us-gaap_NumberOfRealEstateProperties / us-gaap_StatementGeographicalAxis = trno_NorthernNewJerseyAndNewYorkMember |
Square feet of industrial buildings acquired | 2,600,000.0 us-gaap_AreaOfRealEstateProperty / us-gaap_StatementGeographicalAxis = trno_NorthernNewJerseyAndNewYorkMember |
Northern New Jersey/New York City [Member] | Improved Land Parcel [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings |  | 1 us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = trno_ImprovedLandParcelMember / us-gaap_StatementGeographicalAxis = trno_NorthernNewJerseyAndNewYorkMember
Square feet of industrial buildings acquired |  | 4.5 us-gaap_AreaOfRealEstateProperty / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = trno_ImprovedLandParcelMember / us-gaap_StatementGeographicalAxis = trno_NorthernNewJerseyAndNewYorkMember
Northern New Jersey/New York City [Member] | Commitments [Member] |  |
Real Estate Properties [Line Items] |  |
Purchase Price |  | 9,416 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_NorthernNewJerseyAndNewYorkMember
San Francisco Bay Area [Member] | Commitments [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings |  | 4 us-gaap_NumberOfRealEstateProperties / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SanFranciscoBayAreaMember
Square feet of industrial buildings acquired |  | 300,620.0 us-gaap_AreaOfRealEstateProperty / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SanFranciscoBayAreaMember
Purchase Price |  | 37,200 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SanFranciscoBayAreaMember
Seattle [Member] | Commitments [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings |  | 4 us-gaap_NumberOfRealEstateProperties / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SeattleMember
Square feet of industrial buildings acquired |  | 138,154.0 us-gaap_AreaOfRealEstateProperty / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SeattleMember
Purchase Price |  | 12,250 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SeattleMember
Assumed Debt |  | 4,808 trno_DebtAssumedOnProperties / us-gaap_FairValueByLiabilityClassAxis = us-gaap_CommitmentsMember / us-gaap_StatementGeographicalAxis = trno_SeattleMember
Miami [Member] | Commitments [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings |  |
Square feet of industrial buildings acquired |  |
Purchase Price |  |
Assumed Debt |  |
Washington DC and Baltimore [Member] |  |
Real Estate Properties [Line Items] |  |
Number of buildings | 25 us-gaap_NumberOfRealEstateProperties / us-gaap_StatementGeographicalAxis = trno_WashingtonDcAndBaltimoreMember |
Square feet of industrial buildings acquired | 2,700,000.0 us-gaap_AreaOfRealEstateProperty / us-gaap_StatementGeographicalAxis = trno_WashingtonDcAndBaltimoreMember |

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- Definition Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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