Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 91,594	$ 89,075
Accounts receivable, net	20,331	18,084
Prepaid expenses and other	6,799	7,399
Inventory	1,989	2,221
Deferred income tax assets, net	3,051	3,389
Total current assets	123,764	120,168
Property and equipment, net	21,176	21,122
Goodwill	133,031	133,031
Other intangible assets, net	24,151	25,368
Deferred income tax assets, net	23,238	25,494
Other assets	1,652	1,715
TOTAL ASSETS	327,012	326,898
Current liabilities:
Accounts payable and accrued liabilities	11,163	9,885
Accrued compensation and benefits	9,329	13,919
Deferred revenue	23,459	23,023
Total current liabilities	43,951	46,827
Deferred revenue	804	862
Other long-term liabilities	9,102	9,259
TOTAL LIABILITIES	53,857	56,948
Commitments and contingencies
Stockholders' equity:
Preferred stock	0	0
Common stock	2	2
Additional paid-in capital	128,364	127,264
Retained earnings	144,789	142,684
TOTAL STOCKHOLDERS' EQUITY	273,155	269,950
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 327,012	$ 326,898