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, 2013	Jun. 30, 2012	Jun. 30, 2011
Schedule Of Fair Value Measurements [Line Items]
Equity method investments	$ 1,660	$ 0
Goodwill	234,342	180,811
Long-lived assets	485,296	459,112
Total	721,298	639,923
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member]
Schedule Of Fair Value Measurements [Line Items]
Total losses recorded during the period presented	(658)	(565)	(2,108)
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member] | Equity Method Investments [Member]
Schedule Of Fair Value Measurements [Line Items]
Total losses recorded during the period presented	0	0	(2,108)
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Gains (Losses) [Member] | Goodwill [Member]
Schedule Of Fair Value Measurements [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]
Schedule Of Fair Value Measurements [Line Items]
Total losses recorded during the period presented	$ (658)	$ (565)	$ 0