XML 86 R69.htm IDEA: XBRL DOCUMENT v3.25.0.1

Related Party Transactions - Additional Information (Details) $ in Millions		12 Months Ended
	Dec. 05, 2022 USD ($) BusinessDays	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Related Party Transaction [Line Items]
Initally contributed capital	$ 21.4
Debt instrument percentage		6.00%
Percentage of capital contribution invested in joint venture debt notes	70.00%
Percentage of capital contribution invested in joint venture common equity	30.00%
Percentage of Secured loan and equipment financing advance offered to purchase	40.00%
Percentage of principal amount of loan or equipment financing advance	100
Percentage of fee for loan and advance	50.00%
Loan or advance fee payable number of days | BusinessDays	2
Remaining percentage of fee for loan or advance	50.00%
Percentage of daily average aggregate value of outstanding loans and equipment financings	75
Net proceeds for the sale of investments		$ 157.3	$ 146.2
Maximum
Related Party Transaction [Line Items]
Percentage of Secured loan and equipment financing advance offered to purchase	25.00%
8.5% Notes
Related Party Transaction [Line Items]
Debt instrument percentage	8.50%
JV Partner
Related Party Transaction [Line Items]
Initally contributed capital	$ 150.0
Joint venture ownership percentage		87.50%
Senior Credit Corp 2022 LLC
Related Party Transaction [Line Items]
Joint venture ownership percentage		12.50%
Trinity Investor J V I L L C
Related Party Transaction [Line Items]
Initally contributed capital		$ 18.4	11.0
Total Investments at fair value		219.1	151.6
Unfunded capital commitment		3.0	10.4
Trinity Investor J V I L L C | Debt
Related Party Transaction [Line Items]
Total Investments at fair value		12.9	7.7
Trinity Investor J V I L L C | Equity
Related Party Transaction [Line Items]
Total Investments at fair value		5.5
Corporate Joint Venture | Other Assets
Related Party Transaction [Line Items]
Other receivables		1.1	0.8
Corporate Joint Venture | Fee Income
Related Party Transaction [Line Items]
Origination and administrative agent fees		$ 3.2	$ 2.2

X

- Definition

Joint venture ownership percentage.

+ References

No definition available.

+ Details

Name:	trin_JointVentureOwnershipPercentage
Namespace Prefix:	trin_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Loan or advance fee payable days.

+ References

No definition available.

+ Details

Name:	trin_LoanOrAdvanceFeePayableDays
Namespace Prefix:	trin_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Origination and administrative agent fees.

+ References

No definition available.

+ Details

Name:	trin_OriginationAndAdministrativeAgentFees
Namespace Prefix:	trin_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage of capital contribution invested in joint venture common equity.

+ References

No definition available.

+ Details

Name:	trin_PercentageOfCapitalContributionInvestedInJointVentureCommonEquity
Namespace Prefix:	trin_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of capital contribution invested in joint venture debt notes.

+ References

No definition available.

+ Details

Name:	trin_PercentageOfCapitalContributionInvestedInJointVentureDebtNotes
Namespace Prefix:	trin_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of daily average aggregate value of outstanding loans and equipment financings.

+ References

No definition available.

+ Details

Name:	trin_PercentageOfDailyAverageAggregateValueOfOutstandingLoansAndEquipmentFinancings
Namespace Prefix:	trin_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of fee for loan and advance.

+ References

No definition available.

+ Details

Name:	trin_PercentageOfFeeForLoanAndAdvance
Namespace Prefix:	trin_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of principal amount of loan or equipment financing advance.

+ References

No definition available.

+ Details

Name:	trin_PercentageOfPrincipalAmountOfLoanOrEquipmentFinancingAdvance
Namespace Prefix:	trin_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of secured loan and equipment financing advance offered to purchase.

+ References

No definition available.

+ Details

Name:	trin_PercentageOfSecuredLoanAndEquipmentFinancingAdvance
Namespace Prefix:	trin_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Remaining percentage of fee for loan or advance.

+ References

No definition available.

+ Details

Name:	trin_RemainingPercentageOfFeeForLoanOrAdvance
Namespace Prefix:	trin_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Unfunded capital commitment.

+ References

No definition available.

+ Details

Name:	trin_UnfundedCapitalCommitment
Namespace Prefix:	trin_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

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

X

- Definition

Amount of member capital in limited liability company (LLC).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

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

X

- Definition

Amount due from parties in nontrade transactions, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 49
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-49

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(5)(a)(5))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

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

X

- Definition

The cash inflow from the sale of investment projects held by an entity in hopes of getting a future return or interest from it.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

+ Details

Name:	us-gaap_ProceedsFromSaleOfInvestmentProjects
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

+ Details

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

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=trin_JvPartnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=trin_SeniorCreditCorp2022LlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=trin_TrinityInvestorJVILLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_DebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_EquityFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=trin_FeeIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: