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Employee Benefits - Benefit Payments Expected to be Paid for Agreements (Detail)
$ in Thousands
Jun. 30, 2021
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2022 $ 135
2023 155
2024 172
2025 174
2026 193
Thereafter 972
Deferred Compensation Agreements [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2022 121
2023 136
2024 137
2025 227
2026 137
Thereafter 3,360
Total $ 4,118