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Business Segment Information - Summarized Financial Information of Reportable Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting Information [Line Items] |  |
Revenue from external customers | $ 1,363,392 | $ 1,165,864
Net income | 67,977 | 78,833
Domestic Operations |  |
Segment Reporting Information [Line Items] |  |
Revenue from external customers | 1,324,773 | 1,126,523
Net income | 64,211 | 75,449
International Operations |  |
Segment Reporting Information [Line Items] |  |
Revenue from external customers | 38,619 | 39,341
Net income | $ 3,766 | $ 3,384

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