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Debt (Scheduled maturities of long-term debt) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Jun. 30, 2019
Debt Disclosure [Abstract]    
2021 $ 3,000  
2022 3,000  
2023 3,000  
2024 3,000  
2025 282,000  
Long-term Debt $ 294,000 $ 407,000