XML 317 R46.htm IDEA: XBRL DOCUMENT
v3.23.3

Leases - Net Investment in Finance Leases (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Lessee, Lease, Description [Line Items] |  |
Future minimum lease payment receivable | $ 1,974,693 | $ 2,161,192
Estimated residual receivable | 218,251 | 218,004
Gross finance lease receivables | 2,192,944 | 2,379,196
Lessor, Unearned Income | (659,385) | (739,365)
Net investment in finance leases | $ 1,533,559 | $ 1,639,831
Customer Concentration Risk | Lease Finance Portfolio Benchmark | Customer One |  |
Lessee, Lease, Description [Line Items] |  |
Concentration Risk, Percentage | 93.00% | 90.00%

X
- Definition Lessor, Estimated Residual Receivable + References No definition available. + Details
Name: | trtn_LessorEstimatedResidualReceivable
Namespace Prefix: | trtn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Lessor, Future Minimum Lease Payment Receivable + References No definition available. + Details
Name: | trtn_LessorFutureMinimumLeasePaymentReceivable
Namespace Prefix: | trtn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under direct financing and sales-type leases, net of allowance for uncollectible minimum lease payments. + References No definition available. + Details
Name: | trtn_LessorGrossFinancingLeaseReceivables
Namespace Prefix: | trtn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Lessor, Net Investment In Finance Lease + References No definition available. + Details
Name: | trtn_LessorNetInvestmentInFinanceLease
Namespace Prefix: | trtn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Lessor, Unearned Income + References No definition available. + Details
Name: | trtn_LessorUnearnedIncome
Namespace Prefix: | trtn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-42 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-21 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-20 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482861/275-10-50-18 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482861/275-10-50-20 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=trtn_LeaseFinancePortfolioBenchmarkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=trtn_CustomerOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |