Fair Value Measurements - Carrying Value for Assets and Liabilities Measured on Non-Recurring Basis under Level 3 of Fair Value Hierarchy and Losses Recorded During Periods Presented (Detail) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investments	$ 2,156	$ 1,175
Goodwill	1,511,380	1,510,279
Long-lived assets	1,057,099	1,069,574
Total	$ 2,570,635	$ 2,581,028