Accounts Receivable, net - Revenue reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Change in revenue related reserves
Balance at the beginning of the period	$ 241,523	$ 298,616	$ 220,384
Current period provision	1,091,050	1,407,073	1,532,701
Adjustment related to adoption of ASC 606		3,536
Credits issued during the period	(1,149,632)	(1,467,702)	(1,454,469)
Balance at the end of the period	182,941	241,523	298,616
Chargebacks
Change in revenue related reserves
Balance at the beginning of the period	89,567	153,034	79,537
Current period provision	761,787	1,047,192	1,141,995
Credits issued during the period	(789,477)	(1,110,659)	(1,068,498)
Balance at the end of the period	61,877	89,567	153,034
Rebates
Change in revenue related reserves
Balance at the beginning of the period	78,274	82,502	87,616
Current period provision	223,932	250,555	296,784
Credits issued during the period	(239,495)	(254,783)	(301,898)
Balance at the end of the period	62,711	78,274	82,502
Returns
Change in revenue related reserves
Balance at the beginning of the period	55,554	43,059	42,135
Current period provision	16,863	41,982	24,024
Credits issued during the period	(31,621)	(29,487)	(23,100)
Balance at the end of the period	40,796	55,554	43,059
Other
Change in revenue related reserves
Balance at the beginning of the period	18,128	20,021	11,096
Current period provision	88,468	67,344	69,898
Adjustment related to adoption of ASC 606		3,536
Credits issued during the period	(89,039)	(72,773)	(60,973)
Balance at the end of the period	17,557	18,128	20,021
Rebates
Change in revenue related reserves
Current period provision	$ 223,900	$ 250,600	$ 296,800