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Schedule of Total Operating Income for Continuing Reportable Segments (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Segment Reporting Information [Line Items]    
Total operating income for reportable segments $ 25,920 $ 82,904
Interest income 55 1,362
Other (98) (439)
Income tax provision 9,895 28,362
Net income $ 15,982 $ 55,465