Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenue Allowance, Activity
Reserve balance at the beginning of the year	$ 17,039	$ 13,564
Actual credit issued related to sales recorded in prior fiscal years	(13,607)	(12,012)
Reserve or (reversal) charged during current fiscal year related to sales in prior fiscal years	(258)	256
Reserve charged to net sales during current fiscal year related to sales in current fiscal year	75,637	69,852
Actual credit issued related to sales recorded in current fiscal year	(62,261)	(56,266)
Reserve balance at the end of the year	16,550	15,394
Minimum
Revenue Allowance, Activity
Shelf-life of products	24 months
Maximum
Revenue Allowance, Activity
Shelf-life of products	36 months
Chargebacks
Revenue Allowance, Activity
Reserve balance at the beginning of the year	7,063	5,497
Actual credit issued related to sales recorded in prior fiscal years	(6,586)	(5,350)
Reserve or (reversal) charged during current fiscal year related to sales in prior fiscal years	(463)	(54)
Reserve charged to net sales during current fiscal year related to sales in current fiscal year	52,006	50,392
Actual credit issued related to sales recorded in current fiscal year	(45,542)	(44,092)
Reserve balance at the end of the year	6,478	6,393
Rebates
Revenue Allowance, Activity
Reserve balance at the beginning of the year	4,436	2,925
Actual credit issued related to sales recorded in prior fiscal years	(4,434)	(3,084)
Reserve or (reversal) charged during current fiscal year related to sales in prior fiscal years	139	158
Reserve charged to net sales during current fiscal year related to sales in current fiscal year	17,467	15,405
Actual credit issued related to sales recorded in current fiscal year	(13,918)	(11,686)
Reserve balance at the end of the year	3,690	3,718
Returns
Revenue Allowance, Activity
Reserve balance at the beginning of the year	5,540	5,142
Actual credit issued related to sales recorded in prior fiscal years	(2,521)	(3,426)
Reserve charged to net sales during current fiscal year related to sales in current fiscal year	3,363	3,567
Reserve balance at the end of the year	6,382	5,283
Other
Revenue Allowance, Activity
Actual credit issued related to sales recorded in prior fiscal years	(66)	(152)
Reserve or (reversal) charged during current fiscal year related to sales in prior fiscal years	66	152
Reserve charged to net sales during current fiscal year related to sales in current fiscal year	2,801	488
Actual credit issued related to sales recorded in current fiscal year	$ (2,801)	$ (488)