Accounts Receivable (Details) (USD $)	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014
Accounts receivable
Gross accounts receivable	$ 133,342,000		$ 113,420,000
Less: reserve	(57,400,000)		(51,900,000)
Less: Allowance for doubtful accounts	(95,000)		(115,000)
Accounts receivable, net	75,835,000		61,325,000
Chargebacks
Accounts receivable
Less: reserve	(32,778,000)		(30,320,000)
Provision for rebates, chargebacks, returns and other deductions	77,900,000	17,700,000
Rebates
Accounts receivable
Less: reserve	(10,963,000)		(10,532,000)
Provision for rebates, chargebacks, returns and other deductions	18,600,000	7,500,000
Returns
Accounts receivable
Less: reserve	(11,962,000)		(9,341,000)
Provision for rebates, chargebacks, returns and other deductions	4,100,000	1,200,000
Other
Accounts receivable
Less: reserve	(1,709,000)		(1,787,000)
Provision for rebates, chargebacks, returns and other deductions	$ 9,000,000	$ 3,900,000