v3.26.1
RETIREMENT PLANS
 12 Months Ended
Mar. 31, 2026
Retirement Benefits [Abstract]  
RETIREMENT PLANS RETIREMENT PLANS
 
CSWC sponsors an unfunded Retirement Restoration Plan, which is a nonqualified plan. Unvested accrued benefits under the Retirement Restoration Plan were forfeited as of September 30, 2015. The Retirement Restoration Plan is a frozen plan under which no new service cost is being accrued by plan participants.
 
The following tables set forth the Retirement Restoration Plan’s net pension benefit and benefit obligation amounts for the years ended March 31, 2026, 2025 and 2024, as well as amounts recognized in our Consolidated Statements of Assets and Liabilities at March 31, 2026 and 2025 (amounts in thousands): 
 Years ended March 31, 
 202620252024
Net pension cost   
Interest cost on projected benefit obligation$28 $28 $28 
Net amortization(48)(47)(47)
Net pension cost from restoration plan$(20)$(19)$(19)
 
 Years ended March 31, 
 202620252024
Change in benefit obligation   
Benefit obligation at beginning of year$555 $570 $598 
Interest cost28 28 28 
Actuarial gain(7)4 (9)
Benefits paid(47)(47)(47)
Benefit obligation at end of year$529 $555 $570 
 Years ended March 31, 
 20262025
Amounts recognized in our Consolidated Statements of Assets and Liabilities  
Projected benefit obligation$(529)$(555)
Net actuarial gain recognized as a component of equity(997)(1,038)
Total$(1,526)$(1,593)
Accumulated benefit obligation$(529)$(555)
 
The corridor approach is used to amortize the actuarial gains or losses based on 10% of the projected benefit obligation.

The following assumptions were used in estimating the actuarial present value of the projected benefit obligations: 
 Years ended March 31,
 202620252024
Discount rate5.50 %5.25 %5.25 %
 
The following assumptions were used in estimating the net periodic (income)/expense:
 Years ended March 31, 
 202620252024
Discount rate5.25 %5.25 %5.00 %
 
Following are the expected benefit payments for the next five years and in the aggregate for the years 2031-2035 (amounts in thousands):
202720282029203020312031-2035
Restoration Plan$47 $47 $46 $46 $45 $215