Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended
	Sep. 30, 2011		Sep. 30, 2010
Condensed Consolidated Statements of Income [Abstract]
Revenue	$ 212,360		$ 170,487
Cost of revenue	78,064	[1]	62,833	[1]
Technology and development expense	26,674	[1]	23,207	[1]
Marketing and selling expense	76,344	[1]	57,533	[1]
General and administrative expense	21,532	[1]	14,581	[1]
Income from operations	9,746		12,333
Interest income	83		99
Other income (expense), net	450		(252)
Interest expense			107
Income before income taxes	10,279		12,073
Income tax provision	2,107		1,292
Net income	8,172		10,781
Basic net income per share	$ 0.20		$ 0.25
Diluted net income per share	$ 0.19		$ 0.24
Weighted average shares outstanding - basic	41,256,341		43,895,913
Weighted average shares outstanding - diluted	42,309,506		45,231,388
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	4,723		5,371
Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	94		203
Technology and development expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	859		1,132
Marketing and selling expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	555		1,049
General and administrative expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 3,215		$ 2,987

[1] Share-based compensation expense is allocated as follows: