Debt - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Aug. 21, 2018	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 17, 2024
Line of Credit Facility [Line Items]
Debt, weighted average interest rate		7.53%	8.10%
Silver Merger Sub LLC
Line of Credit Facility [Line Items]
Merger agreement date		Dec. 17, 2024
SPV
Line of Credit Facility [Line Items]
Commitment fee percentage		1.00%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Asset coverage ratio		150.00%
Revolving Credit Facility \| Minimum
Line of Credit Facility [Line Items]
Asset coverage ratio		200.00%
JPM Revolving Credit Facility
Line of Credit Facility [Line Items]
Revolving credit facility, terminated		May 31, 2024
Average outstanding balance		$ 13,488	$ 109,240	$ 232,041
Revolving credit facility interest rate description		Borrowings under the JPM Revolving Credit Facility bore interest (at SPV's election) at a per annum rate equal to either (x) the three-month Term SOFR (or other listed offered rate, depending upon the currency of borrowing) in effect and (y) a rate per annum equal to the greater of (i) the prime rate of JPM in effect on such day and (ii) the Federal Funds Effective Rate in effect on such day plus 0.50%; and, with respect to advances denominated in a currency other than USD, the annual rate of interest announced by JPM as being the reference rate then in effect for determining interest rates on commercial loans made in the applicable jurisdiction of such currency, in all cases, plus the applicable margin. The applicable margin was 3.50% per annum. SPV initially paid a commitment fee of 1.00% per annum (or 0.50% per annum during the first nine months from the date the JPM Revolving Credit Facility was entered into) on the average daily unused amount of the financing commitments until the third anniversary of the JPM Revolving Credit Facility.
Applicable margin rate		3.50%
Commitment fee percentage	0.50%
Cost incurred in obtaining revolving credit facility		$ 8,557
Outstanding deferred financing costs		$ 0	$ 619
JPM Revolving Credit Facility \| Federal Funds Rate
Line of Credit Facility [Line Items]
Variable interest rate (as a percent)		0.50%
JPM Term Loan Facility
Line of Credit Facility [Line Items]
Principal amount outstanding		$ 293,132			$ 293,132
Aggregate principal amount in merger advance		76,605
Average outstanding balance		$ 12,014
Revolving credit facility interest rate description		Advances under the JPM Term Loan Facility were made in U.S. dollars. The interest charged on the JPM Term Loan Facility is based on 3-month Term SOFR (or, if Term SOFR is not available, a benchmark replacement or a “base rate” (which is the greater of a prime rate and the federal funds rate plus 0.50%), as applicable), plus an applicable margin of 2.40%. Any amounts outstanding under the JPM Term Loan Facility must be repaid by October 25, 2027.
Variable interest rate (as a percent)		2.40%
Cost incurred in obtaining revolving credit facility		$ 852
Outstanding deferred financing costs		$ 840
JPM Term Loan Facility \| Federal Funds Rate
Line of Credit Facility [Line Items]
Variable interest rate (as a percent)		0.50%
JPM Term Loan Facility \| Maximum
Line of Credit Facility [Line Items]
Principal amount outstanding					$ 340,000
Debt
Line of Credit Facility [Line Items]
Asset coverage ratio requirement, description		Investment Company Act, is at least 200% after such borrowing (or 150% if certain requirements are met). The JPM Revolving Credit Facility was fully repaid on May 8, 2024 and was terminated effective May 31, 2024. As of December 31, 2024, $293,132 in principal amount was outstanding under the JPM Term Loan Facility. As of December 31, 2024 and December 31, 2023, the Company's asset coverage ratio based on the aggregate amount outstanding of senior securities (which included the JPM Revolving Credit Facility prior to its termination) was 219% and 726%.
Asset coverage ratio		219.00%	726.00%
Average outstanding balance		$ 25,502	$ 109,240

Silver Capital Holdings LLC 10-K