Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Deferred tax assets resulting from loss carryforwards	$ 754,655	$ 792,914
Loss carryforwards	3,048,453
Valuation allowance related to the loss carryforwards	741,171
Amount of valuation allowance relating to non-operating entity whose loss carryforward utilization is considered to be remote	$ 710,439
Operating loss carryforward minimum period before expiration	3 years
Operating loss carryforward maximum period before expiration	20 years
Valuation allowance	$ 30,259
Undistributed foreign earnings not permanently reinvested	717,000
Deferred tax liability on undistributed foreign earnings not permanently reinvested	10,000
Undistributed distributed foreign earnings	2,122,000
Deferred tax liability on undistributed foreign earnings not permanently reinvested in their subsidiaries	5,000
Unrecognized tax benefits that would impact effective tax rate if recognized	86,277	140,662	$ 153,091
Accrued interest related to the gross unrecognized tax benefits excluded from the unrecognized tax benefits	14,247	$ 25,214	$ 21,737
Amount of gross unrecognized tax benefits could be reduced by as a result of the revaluation of existing uncertain tax positions	$ 40,000