Variable Interest Entity, Available Capital Contribution

No definition available.

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Namespace Prefix:	tcap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Variable Interest Entity, Capital Contribution

+ References

No definition available.

+ Details

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Namespace Prefix:	tcap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of funds committed to investment company from investors.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478494/946-205-50-25

+ Details

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Period Type:	duration

- Definition

The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
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+ Details

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- 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 810
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Topic 810
-SubTopic 10
-Name Accounting Standards Codification
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-Publisher FASB
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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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Period Type:	duration

- Details

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- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Joint Ventures - Narrative (Details) - USD ($)		3 Months Ended	6 Months Ended
Joint Ventures - Narrative (Details) - USD ($)	May 27, 2026	Jun. 30, 2026	Jun. 30, 2026	Jun. 30, 2025
Variable Interest Entity [Line Items]
Capital contribution			$ 32,600,000
Available capital		$ 184,400,000	184,400,000
TPG Twin Brook Capital Income Fund TCAP JV
Variable Interest Entity [Line Items]
Capital contribution			5,000,000.0
Available capital		28,000,000.0	28,000,000.0
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total capital commitments from investors			$ 397,348,000
Variable interest entity, ownership percentage			86.80%
Total cash purchase price		$ 92,500,000		$ 92,500,000
Variable Interest Entity, Not Primary Beneficiary \| Twin Brook Capital Funding XXXIII
Variable Interest Entity [Line Items]
Total capital commitments from investors	$ 217,000,000.0
Variable Interest Entity, Not Primary Beneficiary \| TCAP JV
Variable Interest Entity [Line Items]
Total capital commitments from investors	$ 33,000,000.0
Variable Interest Entity, Not Primary Beneficiary \| TPG Twin Brook Capital Income Fund TCAP JV
Variable Interest Entity [Line Items]
Variable interest entity, ownership percentage			13.20%