Summary of Significant Accounting Policies - Cooperative Marketing Arrangements (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Component of Operating Other Cost and Expense [Line Items]
Cooperative marketing costs reduction to sales	$ 2,416	$ 2,663	$ 1,725
Sales and Marketing Expense [Member]
Component of Operating Other Cost and Expense [Line Items]
Cooperative marketing costs charged to sales and marketing expense	$ 2,529	$ 2,092	$ 1,527