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Postretirement and Other Employee Benefits
6 Months Ended
Feb. 28, 2021
Retirement Benefits [Abstract]  
Postretirement and Other Employee Benefits Postretirement and Other Employee Benefits
Net Periodic Benefit Cost
The following table provides information about the net periodic benefit cost for all plans for the three months and six months ended February 28, 2021 and February 29, 2020 (in thousands):
  Three months ended Six months ended
  February 28, 2021 February 29, 2020 February 28, 2021 February 29, 2020
Service cost (1)
$ 6,453  $ 6,638  $ 12,531  $ 11,101 
Interest cost (2)
1,176  809  2,297  1,572 
Expected long-term return on plan assets (2)
(3,979) (3,789) (7,849) (6,575)
Recognized actuarial (gain) loss (2)
(1,270) 226  (2,513) 449 
Amortization of actuarial gain (2)
(1,766) —  (3,490) — 
Amortization of prior service credit (2)
(13) (11) (26) (22)
Net periodic benefit cost $ 601  $ 3,873  $ 950  $ 6,525 
(1)Service cost is recognized in cost of revenue in the Condensed Consolidated Statement of Operations.
(2)Components are recognized in other expense in the Condensed Consolidated Statement of Operations.