Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012
Revenue Allowance, Activity
Reserve balance at the beginning of the year	$ 17,039	$ 13,564
Actual credits issued related to sales recorded in prior fiscal years	(11,177)	(9,452)
Reserves or (reversals) charged during current fiscal year related to sales in prior fiscal years	(212)	128
Reserves charged to net sales during current fiscal year related to sales in current fiscal year	26,569	23,374
Actual credits issued related to sales recorded in current fiscal year	(13,906)	(13,264)
Reserve balance at the end of the year	18,313	14,350
Reserve balances	100.00%		100.00%
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 credits issued related to sales recorded in prior fiscal years	(6,504)	(5,262)
Reserves or (reversals) charged during current fiscal year related to sales in prior fiscal years	(372)	(36)
Reserves charged to net sales during current fiscal year related to sales in current fiscal year	19,350	17,477
Actual credits issued related to sales recorded in current fiscal year	(11,490)	(11,119)
Reserve balance at the end of the year	8,047	6,557
Reserve balances	44.00%		41.00%
Rebates
Revenue Allowance, Activity
Reserve balance at the beginning of the year	4,436	2,925
Actual credits issued related to sales recorded in prior fiscal years	(3,743)	(2,686)
Reserves or (reversals) charged during current fiscal year related to sales in prior fiscal years	105	72
Reserves charged to net sales during current fiscal year related to sales in current fiscal year	5,675	4,358
Actual credits issued related to sales recorded in current fiscal year	(2,277)	(1,943)
Reserve balance at the end of the year	4,196	2,726
Reserve balances	23.00%		26.00%
Returns
Revenue Allowance, Activity
Reserve balance at the beginning of the year	5,540	5,142
Actual credits issued related to sales recorded in prior fiscal years	(875)	(1,412)
Reserves charged to net sales during current fiscal year related to sales in current fiscal year	1,405	1,337
Reserve balance at the end of the year	6,070	5,067
Reserve balances	33.00%		33.00%
Other
Revenue Allowance, Activity
Actual credits issued related to sales recorded in prior fiscal years	(55)	(92)
Reserves or (reversals) charged during current fiscal year related to sales in prior fiscal years	55	92
Reserves charged to net sales during current fiscal year related to sales in current fiscal year	139	202
Actual credits issued related to sales recorded in current fiscal year	$ (139)	$ (202)