Accounts Receivable, net - Revenue reserve (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Change in revenue related reserves
Balance at the beginning of the period			$ 241,523	$ 298,616
Current period provision			575,967	809,374
Adjustment related to adoption of ASC 606				3,536
Credits issued during the period			(591,564)	(828,596)
Balance at the end of the period	$ 225,926	$ 282,930	225,926	282,930
Chargebacks
Change in revenue related reserves
Balance at the beginning of the period			89,567	153,034
Current period provision	199,600	334,600	407,523	612,560
Credits issued during the period			(427,293)	(637,492)
Balance at the end of the period	69,797	128,102	69,797	128,102
Rebates
Change in revenue related reserves
Balance at the beginning of the period			78,274	82,502
Current period provision			116,803	143,578
Credits issued during the period			(119,701)	(147,023)
Balance at the end of the period	75,376	79,057	75,376	79,057
Returns
Change in revenue related reserves
Balance at the beginning of the period			55,554	43,059
Current period provision	6,500	11,300	10,217	18,662
Credits issued during the period			(11,120)	(12,213)
Balance at the end of the period	54,651	49,508	54,651	49,508
Other
Change in revenue related reserves
Balance at the beginning of the period			18,128	20,021
Current period provision	28,700	20,700	41,424	34,574
Adjustment related to adoption of ASC 606				3,536
Credits issued during the period			(33,450)	(31,868)
Balance at the end of the period	26,102	26,263	26,102	26,263
Rebates
Change in revenue related reserves
Current period provision	$ 58,300	$ 78,800	$ 116,800	$ 143,600