Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 78,499	$ 108,699
Restricted cash	875	1,502
Accounts receivable, net	73,806	66,469
Inventories	3,493	1,662
Prepaid expenses and other current assets	8,653	6,179
Total current assets	165,326	184,511
Property and equipment, net	35,042	33,830
Software development costs, net	50,464	45,093
Goodwill	244,108	243,320
Intangible assets, net	69,648	90,340
Other long-term assets	2,310	2,133
Total assets	566,898	599,227
Current liabilities:
Accounts payable	8,063	8,516
Registration fees payable	72,657	72,405
Accrued expenses	43,766	41,106
Deferred revenue	68,965	54,919
Current portion of long-term debt		5,000
Capital lease obligations, current portion	1,723	3,317
Other current liabilities	4,017	42,613
Total current liabilities	199,191	227,876
Capital lease obligations, net of current portion	1,028	1,652
Other long-term liabilities	6,149	6,147
Deferred tax liability	20,047	16,913
Total liabilities	226,415	252,588
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock, $0.001 par value-authorized, 100,000 shares; no shares issued and outstanding
Common stock, $0.001 par value-authorized, 1,000,000; issued, 61,950 and 58,219; outstanding, 60,174 and 56,443	62	58
Treasury stock (at cost, 1,776 shares)	(11,959)	(11,959)
Additional paid-in capital	646,954	625,875
Accumulated other comprehensive income	9,369	7,923
Accumulated deficit	(303,943)	(275,258)
Total stockholders' equity	340,483	346,639
Total liabilities and stockholders' equity	$ 566,898	$ 599,227