Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Deferred tax assets resulting from loss carryforwards	$ 678,486	$ 326,707
Loss carryforwards	2,529,303
Valuation allowance related to the loss carryforwards	665,399
Amount of valuation allowance relating to non-operating entity whose loss carryforward utilization is considered to be remote	$ 633,581
Operating loss carryforward minimum period before expiration (in years)	3 years
Operating loss carryforward maximum period before expiration (in years)	20 years
Valuation allowance related to future deductible items	$ 18,680
Accumulated undistributed earnings reinvested in international operations	2,900,000
Amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate	95,460	80,722	$ 83,471
Accrued interest related to the gross unrecognized tax benefits excluded from the unrecognized tax benefits	15,432	$ 12,357	$ 9,514
Amount of gross unrecognized tax benefits could be reduced by as a result of the revaluation of existing uncertain tax positions	$ 100,000