Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 34,764	$ 81,995
Marketable securities	29,611	38,973
Accounts receivable, net of allowance for doubtful accounts of $320 and $331 at March 31, 2015 and December 31, 2014, respectively	35,789	33,167
Accounts receivable -unbilled	1,242	1,678
Prepaid royalties, net of amortization	14,975	13,030
Deferred tax assets	2,575	354
Other prepaid expenses and other current assets	5,780	5,414
Total current assets	124,736	174,611
Property and equipment:
Equipment	27,563	25,133
Leasehold improvements	5,877	5,860
Furniture and fixtures	4,621	4,554
Property and equipment, gross	38,061	35,547
Less accumulated depreciation and amortization	(27,238)	(26,105)
Total, property and equipment	10,823	9,442
Capitalized software development, net of accumulated amortization of $19,387 and $18,114 at March 31, 2015 and December 31, 2014, respectively	13,456	12,706
Goodwill	88,766	41,914
Intangible assets, net of accumulated amortization of $14,636 and $13,834 at March 31, 2015 and December 31, 2014, respectively	56,593	14,795
Non-marketable equity investments	2,753	1,757
Other assets	2,315	2,037
Total assets	299,442	257,262
Current liabilities:
Accounts payable	1,904	4,753
Accrued royalties	8,481	9,255
Accrued liabilities	9,728	7,224
Accrued compensation and related expenses	1,660	2,311
Deferred revenue	66,531	53,716
Total current liabilities	88,304	77,259
Debt, noncurrent	28,000
Deferred tax liabilities, noncurrent	5,547	5,838
Deferred revenue, noncurrent	3,855	3,657
Other long term liabilities	2,691	2,649
Commitments and contingencies
Shareholders' equity:
Common stock, no par value, 75,000 shares authorized; 27,784 and 27,677 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	175,369	174,926
Accumulated deficit	(4,308)	(7,030)
Accumulated other comprehensive loss	(16)	(37)
Total shareholders' equity	171,045	167,859
Total liabilities and shareholders' equity	$ 299,442	$ 257,262