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Employee Benefit Plans (Tables)
 12 Months Ended
Aug. 31, 2023
Pension Plans, Defined Benefit  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Changes in Projected Benefit Obligations, Fair Value of Plan Assets The following table provides detail of changes in the projected benefit obligations, the fair value of plan assets and the funded status of the Company’s U.S. defined benefit pension plans as of the respective August 31 measurement date (in thousands):
20232022
Reconciliation of benefit obligations:
Benefit obligation at beginning of year$37,135 $47,147 
Interest cost1,694 1,165 
Actuarial (gain) loss(2,337)(8,197)
Benefits paid(3,288)(2,980)
Benefit obligation at end of year$33,204 $37,135 
Reconciliation of plan assets:
Fair value of plan assets at beginning of year$31,166 $39,696 
Actual return on plan assets545 (5,658)
Company contributions108 108 
Benefits paid from plan assets(3,289)(2,980)
Fair value of plan assets at end of year28,530 31,166 
Funded status of the plans (underfunded)$(4,674)$(5,969)
Net Periodic Benefit Costs
The following table provides detail on the Company’s domestic net periodic benefit expense (in thousands):
 Year ended August 31,
 202320222021
Interest cost$1,694 $1,165 $1,156 
Expected return on assets(1,984)(2,060)(1,610)
Amortization of actuarial loss878 1,219 1,322 
Net periodic benefit expense$588 $324 $868 
Weighted Average Assumption used to Determine Benefit Obligations and Net Periodic Benefit Cost
Weighted-average assumptions used to determine U.S. pension plan obligations as of August 31 and weighted-average assumptions used to determine net periodic benefit cost for the years ended August 31 are as follows:
202320222021
Assumptions for benefit obligations:
Discount rate5.40 %4.75 %2.55 %
Assumptions for net periodic benefit cost:
Discount rate4.75 %2.55 %2.40 %
Expected return on plan assets5.70 %5.45 %4.20 %
U.S. Pension Plan Investment Allocations by Asset Category
The U.S. pension plan investment allocations by asset category were as follows (dollars in thousands):
 Year Ended August 31,
 2023%2022%
Cash and cash equivalents$51 0.2 %$— — %
Income receivable40 0.1 31 0.1 
Fixed income securities:
U.S. Treasury Securities4,659 16.3 4,852 15.6 
Corporate Bonds— — — — 
Mutual funds11,269 39.5 11,395 36.6 
15,928 55.8 16,247 52.2 
Equity securities:
Mutual funds12,511 43.9 14,888 47.7 
Total plan assets$28,530 100.0 %$31,166 100.0 %
Other Pension Plans, Defined Benefit  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Changes in Projected Benefit Obligations, Fair Value of Plan Assets The following table provides detail of changes in the projected benefit obligations, the fair value of plan assets and the funded status of the Company’s significant foreign defined benefit pension plans as of the respective August 31 measurement date (in thousands):
20232022
Reconciliation of benefit obligations:
Benefit obligation at beginning of year$8,017 $14,421 
Employer service costs60 90 
Interest cost306 159 
Actuarial gain(494)(3,859)
Benefits paid(256)(200)
Settlements(213)(480)
Currency impact665 (2,114)
Benefit obligation at end of year$8,085 $8,017 
Reconciliation of plan assets:
Fair value of plan assets at beginning of year$6,208 $9,396 
Actual return on plan assets(359)(1,159)
Company contributions286 44 
Benefits paid from plan assets(469)(680)
Currency impact529 (1,393)
Fair value of plan assets at end of year6,195 6,208 
Funded status of the plans (underfunded)$(1,889)$(1,808)
The following table provides detail on the Company’s foreign net periodic benefit expense (in thousands):
 Year ended August 31,
 202320222021
Employer service costs$60 $90 $116 
Interest cost306 159 198 
Expected return on assets(245)(316)(347)
Amortization of net prior service credit3 3 4 
Amortization of net loss10 112 139 
Settlement37 145 — 
Net periodic benefit expense$171 $193 $110