v3.25.4

COMMITMENTS AND CONTINGENCIES (Tables) | 9 Months Ended
--- | ---
Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Unused Commitments to Extend Credit | The balances of unfunded debt commitments as of December 31, 2025 and March 31, 2025 were as follows (amounts in thousands):
|  | December 31, |  | March 31, |
Portfolio Company |  | 2025 |  | 2025 |
Revolving Loans |  |  |  |  |
360 Quote TopCo, LLC |  | $ | 904 |  |  | $ | — |  |
Air Conditioning Specialist, Inc. |  | 1,216 |  |  | 1,910 |  |
American Pet Resort, LLC |  | 6,000 |  |  | — |  |
Apple Roofing Administrative Services, LLC (fka Roof OpCo, LLC) |  | 1,222 |  |  | 3,056 |  |
ArborWorks, LLC |  | 217 |  |  | 1,116 |  |
Armko, LLC |  | 3,000 |  |  | — |  |
ATS Operating, LLC |  | 390 |  |  | 890 |  |
Better Than Home, Inc. |  | 3,000 |  |  | — |  |
Bond Brand Loyalty ULC |  | 1,200 |  |  | 1,200 |  |
BP Loenbro Holdings Inc. |  | 1,541 |  |  | 1,321 |  |
Brandner Design, LLC |  | 560 |  |  | 900 |  |
Burning Glass Intermediate Holding Company, Inc. |  | — |  |  | 296 |  |
Campany Roof Maintenance, LLC |  | 1,064 |  |  | 1,064 |  |
Catbird NYC, LLC |  | 4,000 |  |  | 4,000 |  |
Cavalier Buyer, Inc. |  | — |  |  | 2,000 |  |
CDC Dental Management Co., LLC |  | 2,000 |  |  | 1,500 |  |
Central Medical Supply LLC |  | 1,500 |  |  | 1,050 |  |
Clutch, Inc. |  | 5,000 |  |  | — |  |
Cumbria Capital MSO, LLC |  | 750 |  |  | 1,100 |  |
Damotech Inc. |  | — |  |  | 3,000 |  |
Drive Line Service of Portland, LLC |  | 2,000 |  |  | 2,000 |  |
DWS Buyer LLC |  | 1,293 |  |  | — |  |
Edge Autonomy Holdings, LLC |  | — |  |  | 4,000 |  |
Exact Borrower, LLC |  | 2,500 |  |  | 2,500 |  |
FS Vector LLC |  | 4,000 |  |  | 4,000 |  |
GPT Industries, LLC |  | — |  |  | 3,000 |  |
GrammaTech, Inc. |  | — |  |  | 1,000 |  |
Gravitiq LLC |  | 5,000 |  |  | 5,000 |  |
Gulf Pacific Acquisition, LLC |  | 152 |  |  | 303 |  |
Ignite Visibility LLC |  | 3,000 |  |  | 1,500 |  |
InDinero Group, Inc. |  | 549 |  |  | — |  |
Institutes of Health, LLC |  | 1,000 |  |  | 1,000 |  |
ISI Enterprises, LLC |  | 1,500 |  |  | 2,000 |  |
Island Pump and Tank, LLC |  | — |  |  | 3,479 |  |
|  | December 31, |  | March 31, |
Portfolio Company |  | 2025 |  | 2025 |
iVueit, LLC |  | 1,000 |  |  | 1,000 |  |
Kindred Pet Service, LLC (fka Red Dog Operations Holding Company LLC) |  | 2,000 |  |  | 2,000 |  |
KMS, LLC |  | 5,715 |  |  | — |  |
Lash OpCo, LLC |  | 824 |  |  | — |  |
LDG Acquisition Company, LLC |  | 3,000 |  |  | — |  |
LEHR Upfitters, LLC |  | — |  |  | 2,623 |  |
LGM Pharma LLC |  | 1,500 |  |  | 1,500 |  |
Lighting Retrofit International, LLC |  | 2,083 |  |  | 1,354 |  |
Lightning Intermediate II, LLC |  | 1,852 |  |  | 1,852 |  |
LKC Technologies, Inc. |  | 2,000 |  |  | 2,000 |  |
Local Web Leads, LLC |  | 1,000 |  |  | — |  |
Main Line Brands LLC |  | 2,000 |  |  | — |  |
Mammoth BorrowCo, Inc. |  | 650 |  |  | 200 |  |
Microbe Formulas LLC |  | 1,627 |  |  | 1,627 |  |
Mid-Florida Endodontics Management Company, LLC |  | 3,000 |  |  | 3,000 |  |
Mission Critical Group, LLC |  | 1,902 |  |  | — |  |
Monroe Biomedical Research, LLC |  | 2,750 |  |  | — |  |
Musiker Discovery Programs, Inc. |  | 1,250 |  |  | 2,000 |  |
NeuroPsychiatric Hospitals, LLC |  | 4,000 |  |  | 2,000 |  |
New Skinny Mixes, LLC |  | 4,000 |  |  | 3,000 |  |
NinjaTrader, Inc. |  | — |  |  | 2,500 |  |
Pipeline Technique Ltd. |  | 3,333 |  |  | 944 |  |
Pool Service Partners, Inc. |  | 700 |  |  | 2,000 |  |
Pyramids Acquisition, LLC |  | 3,000 |  |  | — |  |
Revo Brands, Inc. |  | 6,800 |  |  | 4,300 |  |
Rodizio Opco LLC |  | 2,000 |  |  | — |  |
Roseland Management, LLC |  | 2,000 |  |  | 2,000 |  |
ServerLIFT, LLC |  | 5,000 |  |  | 4,000 |  |
SocialSEO, LLC |  | 1,800 |  |  | 2,200 |  |
Spotlight AR, LLC |  | 2,000 |  |  | 2,000 |  |
Superior Health Parent LLC |  | 3,000 |  |  | 2,000 |  |
Swensons Drive-In Restaurants, LLC |  | 1,500 |  |  | 1,500 |  |
The Gobel Group, LLC |  | 1,000 |  |  | 1,000 |  |
TMT BHC Buyer, Inc. |  | 4,717 |  |  | 4,717 |  |
Tru Fragrance & Beauty LLC |  | 4,000 |  |  | 4,000 |  |
VP Move Purchaser, Inc. |  | 4,200 |  |  | 3,900 |  |
Wash & Wax Systems LLC |  | 146 |  |  | — |  |
Well Labs Plus, LLC |  | 3,000 |  |  | — |  |
Well-Foam, Inc. |  | 4,500 |  |  | 4,500 |  |
White Plains Linen LLC |  | 3,000 |  |  | — |  |
Winter Services Operations, LLC |  | 3,022 |  |  | 1,333 |  |
Zenfolio Inc. |  | 3,000 |  |  | 1,500 |  |
Total Revolving Loans |  | 158,429 |  |  | 122,735 |  |
|  | December 31, |  | March 31, |
Portfolio Company |  | 2025 |  | 2025 |
Delayed Draw Term Loans |  |  |  |  |
AAC New Holdco Inc. |  | 497 |  |  | — |  |
Air Conditioning Specialist Inc. |  | — |  |  | 3,229 |  |
American Pet Resort, LLC |  | 1,700 |  |  | — |  |
Better Than Home, Inc. |  | 12,000 |  |  | — |  |
BP Loenbro Holdings Inc. |  | — |  |  | 1,101 |  |
Central Medical Supply LLC |  | — |  |  | 1,400 |  |
Crafty Apes, LLC |  | 924 |  |  | 924 |  |
Cumbria Capital MSO, LLC |  | 950 |  |  | 950 |  |
DWS Buyer LLC |  | 2,155 |  |  | — |  |
Enstoa, Inc. |  | 10,671 |  |  | — |  |
Exact Borrower, LLC |  | 2,200 |  |  | 2,200 |  |
Ignite Visibility LLC |  | 3,000 |  |  | — |  |
iVueit, LLC |  | 10,000 |  |  | 10,000 |  |
KMS, LLC |  | — |  |  | 2,286 |  |
LDG Acquisition Company, LLC |  | 12,000 |  |  | — |  |
LEHR Upfitters, LLC |  | — |  |  | 5,247 |  |
Mid-Florida Endodontics Management Company, LLC |  | 9,400 |  |  | 10,000 |  |
Mission Critical Group, LLC |  | 2,130 |  |  | — |  |
Monroe Biomedical Research, LLC |  | 5,000 |  |  | — |  |
Muenster Miling Company, LLC |  | 2,500 |  |  | — |  |
Musiker Discovery Programs, Inc. |  | — |  |  | 7,500 |  |
One Group, LLC |  | — |  |  | 545 |  |
Pipeline Technique Ltd. |  | 10,000 |  |  | — |  |
Pool Service Partners, Inc. |  | — |  |  | 6,100 |  |
Superior Health Parent LLC |  | 6,300 |  |  | 10,000 |  |
SureKap, LLC |  | 7,222 |  |  | 7,222 |  |
TMT BHC Buyer, Inc. |  | — |  |  | 5,000 |  |
unWired Broadband, LLC |  | 11,544 |  |  | — |  |
Well Labs Plus, LLC |  | 15,400 |  |  | — |  |
Total Delayed Draw Term Loans |  | 125,593 |  |  | 73,704 |  |
Other |  |  |  |  |
Broad Sky Networks, LLC |  | — |  |  | 57 |  |
Spectrum of Hope, LLC |  | — |  |  | 411 |  |
Total Other |  | — |  |  | 468 |  |
Total Unfunded Debt Commitments |  | $ | 284,022 |  |  | $ | 196,907 |  |
The balances of unfunded equity commitments as of December 31, 2025 and March 31, 2025 were as follows (amounts in thousands):
|  | December 31, 2025 |  | March 31, 2025
Unfunded Equity Commitments |  |  |  |
Catbird NYC, LLC |  | $ | 125 |  |  | $ | 125 |
Infolinks Media Buyco, LLC |  | 410 |  |  | 411 |
Total Unfunded Equity Commitments |  | $ | 535 |  |  | $ | 536 |
Schedule of Unfunded Debt | The following table provides additional information regarding the expiration year of the Company’s unfunded debt commitments (amounts in thousands):
|  | December 31, 2025 |  | March 31, 2025
Unfunded Debt Commitments |  |  |  |
Expiring during fiscal year ending: |  |  |  |
2026 |  | $ | — |  |  | $ | 31,354 |
2027 |  | 123,901 |  |  | 70,235 |
2028 |  | 35,717 |  |  | 16,420 |
2029 |  | 49,381 |  |  | 42,986 |
2030 |  | 31,530 |  |  | 33,912 |
2031 |  | 39,201 |  |  | 2,000 |
2032 |  | 4,293 |  |  | — |
Total Unfunded Debt Commitments |  | $ | 284,022 |  |  | $ | 196,907 |
Schedule of Future Minimum Payments | The following table shows future minimum payments under the Company's operating leases as of December 31, 2025 (in thousands):
Year ending March 31, | Rent Commitment
2026 | $ | 177 |
2027 | 715 |
2028 | 733 |
2029 | 752 |
2030 | 771 |
Thereafter | 4,988 |
Total | $ | 8,136 |

X
- Definition Investment Company, Schedule Of Unfunded Debt Commitments + References No definition available. + Details
Name: | cswc_InvestmentCompanyScheduleOfUnfundedDebtCommitmentsTableTextBlock
Namespace Prefix: | cswc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Investment Company, Schedule Of Unused Financial Commitments + References No definition available. + Details
Name: | cswc_InvestmentCompanyScheduleOfUnusedFinancialCommitmentsTableTextBlock
Namespace Prefix: | cswc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration