Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 78,411	$ 39,340
Accounts receivable, net of allowance for doubtful accounts of $171 and $129 at December 31, 2013 and 2012, respectively	8,317	6,996
Income tax refunds receivable	3,334	2,209
Deferred income taxes	3,557	2,218
Prepaid expenses and other current assets	3,394	2,454
Total current assets	97,013	53,217
Property and equipment, net	3,568	2,587
Goodwill	176,350	174,294
Intangible assets, net	76,684	86,736
Other assets	2,744	3,232
Total assets	356,359	320,066
Current liabilities:
Accounts payable	1,112	1,038
Accrued expenses and other current liabilities	20,425	17,319
Accrued income taxes payable	14	2,191
Deferred revenue	6,767	8,725
Current portion of long-term debt		10,000
Total current liabilities	28,318	39,273
Long-term debt, less current portion		12,321
Other long-term liabilities	972	613
Deferred income taxes	32,600	26,832
Reserve for income taxes	2,496	963
Accrued pension benefits	5,098	4,958
Commitments and contingencies (Note 15)
Stockholders' equity:
Preferred stock, $0.001 par value, Authorized shares: 10,000,000 at December 31, 2013 and 2012; Issued and outstanding: none
Common stock, $0.001 par value; Authorized shares: 250,000,000 at December 31, 2013 and 2012; Shares issued: 39,277,713 and 37,301,889 at December 31, 2013 and 2012, respectively	39	37
Additional paid-in capital	209,376	178,681
Treasury stock, at cost, 204,830 and 116,101 shares at December 31, 2013 and 2012, respectively	(2,279)	(86)
Retained earnings	78,741	56,980
Accumulated other comprehensive income (loss)	998	(506)
Total stockholders' equity	286,875	235,106
Total liabilities and stockholders' equity	$ 356,359	$ 320,066