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Debt (Scheduled maturities of long-term debt) (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]      
2020 (remaining) $ 1,500    
2021 3,000    
2022 3,000    
2023 128,000    
2024 3,000    
Thereafter 282,000    
Long-term Debt $ 420,500 $ 407,000 $ 298,500