XML 59 R46.htm IDEA: XBRL DOCUMENT
v3.23.1

Borrowings - Additional Information (Details) $ / shares in Units, $ in Thousands |  |  |  |  |  | 1 Months Ended | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 15, 2021 USD ($) | Oct. 27, 2021 USD ($) | Aug. 24, 2021 USD ($) | Dec. 11, 2020 USD ($) TradingDay $ / shares | Jan. 16, 2020 USD ($) | Jan. 31, 2021 USD ($) | Mar. 31, 2023 USD ($) $ / shares | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Jul. 27, 2022 USD ($) | Jul. 22, 2022 USD ($) | Jan. 29, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings under Credit Facilities |  |  |  |  |  |  | $ 54,000 | $ 68,000 |  |  |  |
Repayments of lines of credit |  |  |  |  |  |  | 58,000 | 25,000 |  |  |  |
Line of credit facility, borrowing availability |  |  |  |  |  |  | 166,500 |  | $ 162,500 |  |  |
Outstanding aggregate principal amount |  |  |  |  |  |  | $ 616,000 | 509,000 |  |  |  |
Interest rate |  |  |  |  |  |  | 6.00% |  |  |  |  |
Debt instrument, conversion of principal amount |  |  |  |  |  |  | $ 48,278 |  | 48,118 |  |  |
2025 Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Unamortized deferred finance costs |  |  |  |  |  |  | $ 3,500 |  | 3,900 |  |  |
Aggregate principal amount of unsecured notes |  |  |  |  |  |  |  |  |  | $ 7,500 | $ 50,000 |
Outstanding aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 182,500 |  |
Debt instrument, maturity date |  |  |  |  | Jan. 16, 2025 |  |  |  |  |  |  |
Debt instrument, redemption, description |  |  |  |  |  |  | The 2025 Notes are redeemable, in whole or in part, at any time, or from time to time, at the Company’s option, on or after January 16, 2023 at a redemption price equal to 100% of the outstanding principal amount thereof, plus accrued and unpaid interest to, but excluding, the date of redemption. |  |  |  |  |
Debt instrument, redemption price, percentage of principal amount redeemed |  |  |  |  | 100.00% |  |  |  |  |  |  |
Interest rate |  |  |  |  | 7.00% |  |  |  |  |  |  |
Debt instrument, interest rate terms |  |  |  |  |  |  | The 2025 Notes bear interest at a fixed rate of 7.00% per year payable quarterly on March 15, June 15, September 15, and December 15 of each year, commencing on March 15, 2020. |  |  |  |  |
Financing costs capitalized and deferred |  |  |  |  |  |  | $ 7,800 |  |  |  |  |
2025 Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of unsecured notes |  |  |  |  | $ 105,000 |  | 125,000 |  |  |  |  | $ 20,000
August 2026 Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Unamortized deferred financing costs, net |  |  |  |  |  |  | 2,000 |  | 2,100 |  |  |
Unamortized deferred finance costs |  |  |  |  |  |  | $ 2,000 |  | $ 2,100 |  |  |
Debt instrument, maturity date |  |  | Aug. 24, 2026 |  |  |  |  |  |  |  |  |
Debt instrument, redemption, description |  |  |  |  |  |  | The August 2026 Notes are redeemable, in whole or in part, at any time, or from time to time, at the Company’s option, at a redemption price equal to the greater of (1) 100% of the principal amount of the August 2026 Notes to be redeemed or (2) the sum of the present values of the remaining scheduled payments of principal and interest (exclusive of accrued and unpaid interest to the date of redemption) on the August 2026 Notes to be redeemed, discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) using the applicable treasury rate plus 50 basis points, plus, in each case, accrued and unpaid interest to the redemption date; provided, however, that if the Company redeems any August 2026 Notes on or after July 24, 2026, the redemption price for the August 2026 Notes will be equal to 100% of the principal amount of the August 2026 Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the date of redemption. In addition, if a change of control repurchase event (as defined in the August 2026 Notes Indenture) occurs prior to the maturity date of the August 2026 Notes or the Company’s redemption of all outstanding August 2026 Notes, the Company will be required, subject to certain conditions, to make an offer to the holders thereof to repurchase for cash some or all of the August 2026 Notes at a repurchase price equal to 100% of the principal amount of the August 2026 Notes to be repurchased, plus accrued and unpaid interest, if any, to, but excluding, the date of repurchase. |  |  |  |  |
Debt instrument, redemption price, percentage of principal amount redeemed |  |  | 100.00% |  |  |  |  |  |  |  |  |
Interest rate |  |  | 4.375% |  |  |  | 4.375% |  | 4.375% |  |  |
Debt instrument, interest rate terms |  |  |  |  |  |  | The August 2026 Notes bear interest at a fixed rate of 4.375% per year payable semiannually on February 15 and August 15 of each year, commencing on February 15, 2022. |  |  |  |  |
Financing costs capitalized and deferred |  |  |  |  |  |  | $ 2,900 |  |  |  |  |
August 2026 Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of unsecured notes |  |  | $ 125,000 |  |  |  |  |  |  |  |  |
December 2026 Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Unamortized deferred financing costs, net |  |  |  |  |  |  | $ 1,400 |  | $ 1,500 |  |  |
Unamortized deferred finance costs | $ 1,900 |  |  |  |  |  |  |  |  |  |  |
Debt instrument, maturity date | Dec. 15, 2026 |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption, description |  |  |  |  |  |  | The December 2026 Notes are redeemable, in whole or in part, at any time, or from time to time, at the Company’s option, at a redemption price equal to the greater of (1) 100% of the principal amount of the December 2026 Notes to be redeemed or (2) the sum of the present values of the remaining scheduled payments of principal and interest (exclusive of accrued and unpaid interest to the date of redemption) on the December 2026 Notes to be redeemed, discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) using the applicable treasury rate plus 50 basis points, plus, in each case, accrued and unpaid interest to the redemption date; provided, however, that if the Company redeems any December 2026 Notes on or after November 15, 2026, the redemption price for the December 2026 Notes will be equal to 100% of the principal amount of the December 2026 Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the date of redemption. In addition, if a change of control repurchase event (as defined in the December 2026 Notes Indenture) occurs prior to the maturity date of the December 2026 Notes or the Company’s redemption of all outstanding December 2026 Notes, the Company will be required, subject to certain conditions, to make an offer to the holders thereof to repurchase for cash some or all of the December 2026 Notes at a repurchase price equal to 100% of the principal amount of the December 2026 Notes to be repurchased, plus accrued and unpaid interest, if any, to, but excluding, the date of repurchase. |  |  |  |  |
Debt instrument, redemption price, percentage of principal amount redeemed | 100.00% |  |  |  |  |  |  |  |  |  |  |
Interest rate | 4.25% |  |  |  |  |  | 4.25% |  | 4.25% |  |  |
Debt instrument, interest rate terms |  |  |  |  |  |  | The December 2026 Notes bear interest at a fixed rate of 4.25% per year payable semiannually on June 15 and December 15 of each year, commencing on June 15, 2022. |  |  |  |  |
December 2026 Notes | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of unsecured notes | $ 75,000 |  |  |  |  |  |  |  |  |  |  |
6.00% Convertible Notes due 2025 |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Unamortized deferred finance costs |  |  |  |  |  |  | $ 1,015 | 1,391 |  |  |  |
Aggregate principal amount of unsecured notes |  |  |  |  |  |  | $ 50,000 | 50,000 |  |  |  |
Debt instrument, maturity date |  |  |  | Dec. 11, 2025 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 6.00% |  |  |  |  |  |  |  |
Debt instrument, interest rate terms |  |  |  |  |  |  | The Convertible Notes bear interest at a fixed rate of 6.00% per year, subject to additional interest upon certain events, payable semiannually in arrears on May 1 and November 1 of each year, beginning on May 1, 2021. If an investment grade rating is not maintained with respect to the Convertible Notes, additional interest of 0.75% per annum will accrue on the Convertible Notes until such time as the Convertible Notes have received an investment grade rating of “BBB-” (or its equivalent) or better. The rating remained at investment grade as of March 31, 2023. |  |  |  |  |
Financing costs capitalized and deferred |  |  |  | $ 1,900 |  |  |  |  |  |  |  |
Additional rate of interest |  |  |  | 0.75% |  |  |  |  |  |  |  |
Debt instrument, date of first required payment |  |  |  | May 01, 2021 |  |  |  |  |  |  |  |
Debt instrument, conversion of principal amount |  |  |  | $ 1,000 |  |  | $ 48,278 | $ 47,639 |  |  |  |
Debt instrument, convertible, threshold consecutive trading days | TradingDay |  |  |  | 30 |  |  |  |  |  |  |  |
Debt instrument, convertible, threshold percentage |  |  |  | 120.00% |  |  |  |  |  |  |  |
Percentage of repurchase price equal to principal amount of convertible notes to be repurchased |  |  |  | 100.00% |  |  |  |  |  |  |  |
Percentage of estimated at time of issuance that values of debt |  |  |  | 99.10% |  |  |  |  |  |  |  |
Percentage of embedded conversion feature of convertible notes |  |  |  | 0.90% |  |  |  |  |  |  |  |
Debt conversion original debt amount reversed |  |  |  |  |  | $ 500 |  |  |  |  |  |
6.00% Convertible Notes due 2025 | Capital in Excess of Par Value |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of original issue discount |  |  |  | 0.90% |  |  |  |  |  |  |  |
Debt conversion, original issue discount of debt |  |  |  | $ 500 |  |  |  |  |  |  |  |
6.00% Convertible Notes due 2025 | Common Stock |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Conversion notes conversion rate |  |  |  | 66.6667 |  |  | 73.3359 |  |  |  |  |
Debt instrument, conversion of principal amount |  |  |  | $ 1,000 |  |  | $ 1,000 |  |  |  |  |
Debt instrument, initial conversion price per share | $ / shares |  |  |  | $ 15.00 |  |  | $ 13.64 |  |  |  |  |
6.00% Convertible Notes due 2025 | Private Convertible Note Offering |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of unsecured notes |  |  |  | $ 50,000 |  |  |  |  |  |  |  |
Credit Suisse Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of lines of credit |  |  |  |  |  |  | $ 58,000 |  |  |  |  |
KeyBank Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Credit facility |  | $ 350,000 |  |  |  |  | 183,500 |  | $ 187,500 |  |  |
Maximum borrowing capacity |  | $ 400,000 |  |  |  |  |  |  |  |  |  |
Variable advance rate on eligible term loan |  | 60.00% |  |  |  |  |  |  |  |  |  |
Variable advance rate on eligible finance loan |  | 64.00% |  |  |  |  |  |  |  |  |  |
Line of credit facility revolving period |  | 3 years |  |  |  |  |  |  |  |  |  |
Line of credit facility amortization period |  | 2 years |  |  |  |  |  |  |  |  |  |
Line of credit facility expiration date |  | Oct. 27, 2026 |  |  |  |  |  |  |  |  |  |
Borrowings under Credit Facilities |  |  |  |  |  |  | 54,000 |  |  |  |  |
Unamortized deferred financing costs, net |  |  |  |  |  |  | 3,600 |  |  |  |  |
Unamortized deferred finance costs |  |  |  |  |  |  | $ 2,700 |  | $ 2,900 |  |  |
KeyBank Credit Facility | SOFR |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate |  | 2.85% |  |  |  |  |  |  |  |  |  |

X
- Definition Convertible notes conversion rate. + References No definition available. + Details
Name: | trin_ConvertibleNotesConversionRate
Namespace Prefix: | trin_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt conversion original debt amount reversed. + References No definition available. + Details
Name: | trin_DebtConversionOriginalDebtAmountReversed
Namespace Prefix: | trin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line of credit facility amortization period. + References No definition available. + Details
Name: | trin_LineOfCreditFacilityAmortizationPeriod
Namespace Prefix: | trin_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of credit facility revolving period. + References No definition available. + Details
Name: | trin_LineOfCreditFacilityRevolvingPeriod
Namespace Prefix: | trin_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of embedded conversion feature of convertible notes. + References No definition available. + Details
Name: | trin_PercentageOfEmbeddedConversionFeatureOfConvertibleNotes
Namespace Prefix: | trin_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of estimated at time of issuance that values of debt. + References No definition available. + Details
Name: | trin_PercentageOfEstimatedAtTimeOfIssuanceThatValuesOfDebt
Namespace Prefix: | trin_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of repurchase price equal to principal amount of convertible notes to be repurchased. + References No definition available. + Details
Name: | trin_PercentageOfRepurchasePriceEqualToPrincipalAmountOfConvertibleNotesToBeRepurchased
Namespace Prefix: | trin_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Variable advance rate on eligible finance loan. + References No definition available. + Details
Name: | trin_VariableAdvanceRateOnEligibleFinanceLoan
Namespace Prefix: | trin_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Variable advance rate on eligible term loan. + References No definition available. + Details
Name: | trin_VariableAdvanceRateOnEligibleTermLoan
Namespace Prefix: | trin_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + 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)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 2: 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: 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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
Name: | us-gaap_ConvertibleDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4332-108586 + Details
Name: | us-gaap_DebtConversionOriginalDebtAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The rate of interest that was being paid on the original debt issue that is being converted in the noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4332-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 + Details
Name: | us-gaap_DebtConversionOriginalDebtInterestRateOfDebt
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031898-161870 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the debt agreement requires the first payment to be made, in YYYY-MM-DD format. + 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentDateOfFirstRequiredPayment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Incremental percentage increase (decrease) in the stated rate on a debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentInterestRateIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: 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(a)(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets. + 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(a)(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateTerms
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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 No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of debt redemption features under terms of the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of principal amount of debt redeemed. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.A) -URI https://asc.fasb.org/extlink&oid=122040515&loc=d3e105025-122735 + Details
Name: | us-gaap_DeferredOfferingCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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 https://asc.fasb.org/extlink&oid=120391452&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 https://asc.fasb.org/extlink&oid=126897435&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 https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Date the credit facility terminates, in YYYY-MM-DD format. + 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 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 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(a)(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 5: 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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 7: 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=trin_TwoThousandTwentyFiveNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=trin_August2026NotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=trin_December2026NotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=trin_SixPointZeroZeroPercentageConvertibleNotesDueTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=trin_CapitalInExcessOfParValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=trin_PrivateConvertibleNoteOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=trin_CreditSuisseCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=trin_KeyBankCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |