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Employee Benefit Plans (Tables)
 12 Months Ended
Aug. 31, 2022
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):
20222021
Reconciliation of benefit obligations:
Benefit obligation at beginning of year$47,147 $49,640 
Interest cost1,165 1,156 
Actuarial (gain) loss(8,197)(729)
Benefits paid(2,980)(2,920)
Benefit obligation at end of year$37,135 $47,147 
Reconciliation of plan assets:
Fair value of plan assets at beginning of year$39,696 $39,935 
Actual return on plan assets(5,658)1,990 
Company contributions108 691 
Benefits paid from plan assets(2,980)(2,920)
Fair value of plan assets at end of year31,166 39,696 
Funded status of the plans (underfunded)$(5,969)$(7,451)
Net Periodic Benefit Costs
The following table provides detail on the Company’s domestic net periodic benefit expense (in thousands):
 Year ended August 31,
 202220212020
Interest cost$1,165 $1,156 $1,331 
Expected return on assets(2,060)(1,610)(1,770)
Amortization of actuarial loss1,219 1,322 1,212 
Net periodic benefit expense$324 $868 $773 
Weighted Average Assumption used to Determine Benefit Obligations and Net Periodic Benefit Cost
Weighted-average assumptions used to determine U.S. pension plan obligations as of August 31 and weighted-average assumptions used to determine net periodic benefit cost for the years ended August 31 are as follows:
202220212020
Assumptions for benefit obligations:
Discount rate4.75 %2.55 %2.40 %
Assumptions for net periodic benefit cost:
Discount rate2.55 %2.40 %2.90 %
Expected return on plan assets5.45 %4.20 %4.60 %
U.S. Pension Plan Investment Allocations by Asset Category
The U.S. pension plan investment allocations by asset category were as follows (dollars in thousands):
 Year Ended August 31,
 2022%2021%
Cash and cash equivalents$— — %$— — %
Income receivable31 0.1 49 0.1 
Fixed income securities:
U.S. Treasury Securities4,852 15.6 4,825 12.2 
Corporate Bonds— — — — 
Mutual funds11,395 36.6 23,564 59.3 
16,247 52.2 28,389 71.5 
Equity securities:
Mutual funds14,888 47.7 11,258 28.4 
Total plan assets$31,166 100.0 %$39,696 100.0 %
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):
20222021
Reconciliation of benefit obligations:
Benefit obligation at beginning of year$14,421 $14,297 
Employer service costs90 116 
Interest cost159 198 
Actuarial (gain)/loss(3,859)51 
Benefits paid(200)(293)
Settlements(480)— 
Currency impact(2,114)52 
Benefit obligation at end of year$8,017 $14,421 
Reconciliation of plan assets:
Fair value of plan assets at beginning of year$9,396 $8,980 
Actual return on plan assets(1,159)532 
Company contributions44 56 
Benefits paid from plan assets(680)(293)
Currency impact(1,393)121 
Fair value of plan assets at end of year6,208 9,396 
Funded status of the plans (underfunded)$(1,808)$(5,025)
The following table provides detail on the Company’s foreign net periodic benefit expense (in thousands):
 Year ended August 31,
 202220212020
Employer service costs$90 $116 $284 
Interest cost159 198 171 
Expected return on assets(316)(347)(357)
Amortization of net prior service credit3 4 (18)
Amortization of net loss112 139 205 
Settlement145 — — 
Income of special events— — (728)
Net periodic benefit expense (income)$193 $110 $(443)