Area of real estate property acquired, during period.

No definition available.

Name:	trno_AreaOfRealEstatePropertyAcquired
Namespace Prefix:	trno_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

Asset Acquisition, Contractual Commitment, Assets Acquired and Liabilities Assumed, Net

+ References

No definition available.

+ Details

Name:	trno_AssetAcquisitionContractualCommitmentAssetsAcquiredandLiabilitiesAssumedNet
Namespace Prefix:	trno_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Lessor, Operating Lease, Lessee, Number of Lessee Deferrals Granted

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseLesseeNumberOfLesseeDeferralsGranted
Namespace Prefix:	trno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Lessee, Percentage Of Deferrals Granted

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseLesseePercentageOfDeferralsGranted
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Number of Lessees

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseNumberOfLessees
Namespace Prefix:	trno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Number Of Lessees Requesting Deferral Or Abatement Denied

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseNumberOfLesseesRequestingDeferralOrAbatementDenied
Namespace Prefix:	trno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Number Of Lessees Requesting Deferral Or Abatement, In Discussions

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseNumberOfLesseesRequestingDeferralOrAbatementInDiscussions
Namespace Prefix:	trno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Number Of Lessees Requesting Deferral Or Abatement Rescinded

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseNumberOfLesseesRequestingDeferralOrAbatementRescinded
Namespace Prefix:	trno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Number of Lessees Requesting Rent Deferral

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeaseNumberOfLesseesRequestingRentDeferral
Namespace Prefix:	trno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Lease, Percentage Of Lessees Requesting Rent Deferral or Abatement

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasePercentageOfLesseesRequestingRentDeferralOrAbatement
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests Approved, By Number Of Lessees Requesting Deferral Or Abatement

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsApprovedByNumberOfLesseesRequestingDeferralOrAbatement
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests Approved, By Total Dollar Amount

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsApprovedByTotalDollarAmount
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests Denied, By Number Of Lessees Requesting Deferral Or Abatement

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsDeniedByNumberOfLesseesRequestingDeferralOrAbatement
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests Denied, By Total Dollar Amount

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsDeniedByTotalDollarAmount
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests, In Discussions, By Number Of Lessees Requesting Deferral Or Abatement

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsInDiscussionsByNumberOfLesseesRequestingDeferralOrAbatement
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests, In Discussions, By Total Dollar Amount

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsInDiscussionsByTotalDollarAmount
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests Rescinded, By Number Of Lessees Requesting Deferral Or Abatement

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsRescindedByNumberOfLesseesRequestingDeferralOrAbatement
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Percentage Of Deferral Requests Rescinded, By Total Dollar Amount

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsPercentageOfDeferralRequestsRescindedByTotalDollarAmount
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Requests for Deferral Or Abatement Denied, Percentage Of Annualized Base Rent

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsRequestsForDeferralOrAbatementDeniedPercentageOfAnnualizedBaseRent
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Requests for Deferral Or Abatement, In Discussion, Percentage Of Annualized Base Rent

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsRequestsForDeferralOrAbatementInDiscussionPercentageOfAnnualizedBaseRent
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessor, Operating Leases, Payments, Requests for Deferral Or Abatement, Rescinded, Percentage Of Annualized Base Rent

+ References

No definition available.

+ Details

Name:	trno_LessorOperatingLeasesPaymentsRequestsForDeferralOrAbatementRescindedPercentageOfAnnualizedBaseRent
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of real estate properties acquired, during period.

+ References

No definition available.

+ Details

Name:	trno_NumberOfRealEstatePropertiesAcquired
Namespace Prefix:	trno_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating Lease, Lease Income, Payments, Request for Deferral, Percentage Of Annualized Base Rent

+ References

No definition available.

+ Details

Name:	trno_OperatingLeaseLeaseIncomePaymentsRequestForDeferralPercentageOfAnnualizedBaseRent
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Operating Lease, Lease Income, Payments, Requests For Deferral Approved, Percentage Of Annualized Base Rent

+ References

No definition available.

+ Details

Name:	trno_OperatingLeaseLeaseIncomePaymentsRequestsForDeferralApprovedPercentageOfAnnualizedBaseRent
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Operating Leases, Lease Income, Lease Payments, Percentage Paid By Application Of Security Deposit

+ References

No definition available.

+ Details

Name:	trno_OperatingLeasesLeaseIncomeLeasePaymentsPercentagePaidByApplicationOfSecurityDeposit
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating Leases, Lease Income, Lease Payments, Percentage Paid In Cash

+ References

No definition available.

+ Details

Name:	trno_OperatingLeasesLeaseIncomeLeasePaymentsPercentagePaidInCash
Namespace Prefix:	trno_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_SecuredDebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	trno_AssetAcquisitionAxis=trno_AssetAcquisitions2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_LandAndLandImprovementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=trno_October2022UnsecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=trno_August2020UnsecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnusualRiskOrUncertaintyByNatureAxis=trno_COVID19Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details)			1 Months Ended	3 Months Ended
Subsequent Events (Details)	May 05, 2020 $ / shares	Apr. 17, 2020 USD ($) a property	May 01, 2020 deritavtive	Mar. 31, 2020 USD ($) ft² property	May 01, 2020	May 01, 2020 tenant	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Subsequent Event [Line Items]
Secured loan				$ 11,600,000
Credit facility, amount outstanding				0			$ 0
Cash and cash equivalents				$ 69,733,000			$ 110,082,000	$ 59,750,000	$ 31,004,000
Number of properties acquired \| property				1
Area of real estate property acquired \| ft²				2.7
Asset Acquisitions 2020
Subsequent Event [Line Items]
Purchase price				$ 30,600,000
Asset Acquisitions 2020 \| Improved land parcels
Subsequent Event [Line Items]
Number of properties acquired \| property				1
Area of real estate property acquired \| ft²				66,000
October 2022 unsecured revolving credit facility \| Senior unsecured notes
Subsequent Event [Line Items]
Debt instrument, face amount				$ 250,000,000.0
Credit facility \| August 2020 Unsecured Revolving Credit Facility \| Line of credit
Subsequent Event [Line Items]
Credit facility, amount outstanding				$ 0
Subsequent event
Subsequent Event [Line Items]
Dividend per share, common stock (in dollars per share) \| $ / shares	$ 0.27
Subsequent event \| COVID-19
Subsequent Event [Line Items]
Percentage rents paid in cash			84.00%
Percentage rents paid by application of security deposit			11.00%
Number of tenants requesting deferral or abatement \| tenant						170
Percentage of tenants requesting deferral or abatement					34.00%
Number of tenant leases \| tenant						498
Percent of annualized base rent					6.50%
Number of deferrals granted					49	49
Deferrals granted, percentage of annualized base rent.					2.00%
Percentage granted by number					29.00%
Percentage granted by dollar amount					31.00%
Percentage of total dollar requests					76.00%
Number of tenant's deferral requests denied \| tenant						67
Tenant's request denied, percentage of annualized base rent					2.50%
Percentage of requests denied by number					39.00%
Percentage of requests denied by dollar amount					38.00%
Number of deferral and abatement requests rescinded \| tenant						46
Percentage of annualized base rent					1.20%
Percentage of requests by number					27.00%
Percentage of requests by dollar amount					18.00%
Number of tenants in discussions \| deritavtive			8
Percentage of annualized base rent					0.20%
Percentage by number					5.00%
Percentage by dollar amount					3.00%
Subsequent event \| Asset Acquisitions 2020 \| Improved land parcels
Subsequent Event [Line Items]
Number of properties acquired \| property		1
Area of real estate property acquired \| a		2.8
Purchase price		$ 4,500,000