No definition available.

Name:	ck0001715933_InterestAndCreditFacilityExpenses
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Line of credit facility, weighted average interest rate.

No definition available.

Name:	ck0001715933_LineOfCreditFacilityWeightedAverageInterestRate
Namespace Prefix:	ck0001715933_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Undrawn commitment fees.

No definition available.

Name:	ck0001715933_UndrawnCommitmentFees
Namespace Prefix:	ck0001715933_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of expense for administrative fee from service provided, including, but not limited to, salary, rent, or overhead cost.

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Name:	us-gaap_AdministrativeFeesExpense
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of amortization expense attributable to debt issuance costs.

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-Topic 835
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-URI https://asc.fasb.org/1943274/2147482925/835-30-45-3

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Balance Type:	debit
Period Type:	duration

Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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Average amount borrowed under the credit facility during the period.

No definition available.

Name:	us-gaap_LineOfCreditFacilityAverageOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

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-Paragraph 1
-Subparagraph (SX 210.4-08(f))
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