CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 97,145	$ 78,876
Accounts receivable (less allowance for losses of $1274 in 2014 and $1,113 in 2013)	82,334	106,570
Prepaid expenses	15,158	13,522
Income tax receivable	4,290	9,721
Other current assets	933	787
Deferred income taxes	7,759	7,759
Total current assets	207,619	217,235
Accounts receivable, long-term portion	526	588
Property and equipment, net	66,222	64,844
Non-current investments available-for-sale	1,280	1,288
Other assets:
Goodwill	121,011	121,011
Other intangibles, net	37,376	38,986
Sundry	207	536
Total assets	434,241	444,488
Current liabilities:
Accounts payable	2,572	2,533
Accrued liabilities	19,512	32,839
Deferred revenue	139,298	156,738
Total current liabilities	161,382	192,110
Deferred income taxes	6,155	6,059
Commitments and contingencies
Shareholders' equity:
Preferred stock, $10.00 par value; 1,000,000 shares authorized, none issued
Common stock, $0.01 par value; 100,000,000 shares authorized; 48,147,969 shares issued in 2014 and 2013	481	481
Additional paid-in capital	187,379	182,176
Accumulated other comprehensive loss, net of tax	(46)	(46)
Retained earnings	214,093	202,210
Treasury stock, at cost; 15,143,967 and 15,309,940 shares in 2014 and 2013, respectively	(135,203)	(138,502)
Total shareholders' equity	266,704	246,319
Liabilities and Shareholders' equity, Total	$ 434,241	$ 444,488