Fair Value Measurements - Fair Value Hierarchy for Assets and Liabilities Measured on Non-Recurring Basis (Detail) (Fair Value of Assets and Liabilities Measured on Non-Recurring Basis [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Jun. 30, 2014
Fair Value of Assets and Liabilities Measured on Non-Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investments	$ 1,176	$ 3,578
Goodwill	530,889	540,952
Long-lived assets	643,786	691,887
Total	$ 1,175,851	$ 1,236,417