Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 117,095	$ 111,332
Accounts receivable (less allowances of $1,126,000 and $1,286,000, respectively)	23,737	22,638
Prepaid expenses and other	4,116	5,352
Inventory	2,129	2,291
Total current assets	147,077	141,613
Property and equipment, net	14,297	15,386
Goodwill	133,031	133,031
Other intangible assets, net	12,817	14,964
Deferred income tax assets (less valuation allowance of $45,777,000)	79,644	83,983
Other assets	1,541	1,445
TOTAL ASSETS	388,407	390,422
Current liabilities:
Accounts payable and accrued liabilities	8,370	9,247
Accrued compensation and benefits	11,618	10,864
Deferred revenue	28,239	27,045
Total current liabilities	48,227	47,156
Deferred revenue	674	741
Other long-term liabilities	8,960	8,972
TOTAL LIABILITIES	57,861	56,869
Commitments and contingencies
Stockholders’ equity:
Preferred stock	0	0
Common stock	2	2
Additional paid-in capital	105,867	110,435
Retained earnings	224,677	223,116
TOTAL STOCKHOLDERS’ EQUITY	330,546	333,553
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 388,407	$ 390,422