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Employee Benefits - Significant Balances, Costs and Assumptions (Detail) - USD ($)
$ in Thousands
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Retirement Benefits [Abstract]      
Benefit obligation $ 2,431 $ 2,620 $ 3,065
Fair value of plan assets  
Funded status (2,431) (2,620)  
Accumulated benefit obligation $ 2,431 $ 2,620