Loans - Secured Loans in Non-Accrual Status (Parenthetical) (Details) - Nonaccrual Status [Member] - Paid in full in February 2022 [Member]	Feb. 28, 2022 USD ($) Loan
Loans Details Secured Loan Transactions [Line Items]
Number of loans \| Loan	3
Principal \| $	$ 987,000

Loans in non-accrual status paid in full aggregate amount

No definition available.

Name:	ck0000889123_LoansInNonAccrualStatusPaidInFullAggregateAmount
Namespace Prefix:	ck0000889123_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant