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Business Segment Information - Summarized Financial Information of Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenue from external customers	$ 1,181,641	$ 1,087,860	$ 2,347,505	$ 2,173,674
Net income	68,596	142,795	147,429	184,841
Domestic Operations
Segment Reporting Information [Line Items]
Revenue from external customers	1,142,552	1,046,823	2,269,075	2,097,706
Net income	64,557	138,930	140,006	177,763
International Operations
Segment Reporting Information [Line Items]
Revenue from external customers	39,089	41,037	78,430	75,968
Net income	$ 4,039	$ 3,865	$ 7,423	$ 7,078

X

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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