Fair Value Measurements - Fair Value Hierarchy for Assets and Liabilities Measured on Non-Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investments	$ 3,578	$ 1,660
Goodwill	540,952	234,342	180,811
Long-lived assets	691,887	485,296
Total	1,236,417	721,298
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total losses recorded during the period presented	(687)	(658)	(565)
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member] | Equity Method Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total losses recorded during the period presented	0	0	0
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member] | Goodwill [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total losses recorded during the period presented	0	0	0
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member] | Long-Lived Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total losses recorded during the period presented	$ (687)	$ (658)	$ (565)