Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 160,308	$ 146,733
Short-term investments	24,461	12,097
Total cash, cash equivalents and short-term investments	184,769	158,830
Trade accounts receivable:
Billed, net of allowance of $2,918 and $2,421	174,137	179,804
Unbilled and other	28,847	30,981
Deferred income taxes	19,758	19,982
Income taxes receivable	5,261	4,139
Other current assets	18,095	16,224
Total current assets	430,867	409,960
Property and equipment, net of depreciation of $120,159 and $116,125	38,243	41,154
Software, net of amortization of $65,959 and $56,521	31,727	29,966
Goodwill	233,803	220,013
Client contracts, net of amortization of $178,338 and $159,225	85,777	98,403
Deferred income taxes	1,998	1,008
Other assets	13,433	14,393
Total assets	835,848	814,897
Current liabilities:
Current maturities of long-term debt	20,500	27,000
Client deposits	30,596	30,523
Trade accounts payable	33,145	27,198
Accrued employee compensation	45,397	42,005
Income taxes payable	3,473	2,334
Deferred revenue	54,627	44,824
Other current liabilities	18,822	23,501
Total current liabilities	206,560	197,385
Non-current liabilities:
Long-term debt, net of unamortized original issue discount of $26,576 and $30,256	270,924	282,744
Deferred revenue	7,452	8,631
Income taxes payable	3,783	4,114
Deferred income taxes	21,374	28,188
Other non-current liabilities	18,225	19,121
Total non-current liabilities	321,758	342,798
Total liabilities	528,318	540,183
Stockholders' equity:
Preferred stock, par value $.01 per share; 10,000 shares authorized; zero shares issued and outstanding
Common stock, par value $.01 per share; 100,000 shares authorized; 33,711 and 33,822 shares outstanding	652	645
Additional paid-in capital	457,962	449,376
Treasury stock, at cost, 31,530 and 30,707 shares	(728,243)	(714,893)
Accumulated other comprehensive income (loss):
Unrealized gain on short-term investments, net of tax	3	1
Unrecognized pension plan losses and prior service costs, net of tax	(1,803)	(1,794)
Unrecognized loss on change in fair value of interest rate swaps, net of tax	(736)	(618)
Cumulative foreign currency translation adjustments	2,611	(1,998)
Accumulated earnings	577,084	543,995
Total stockholders' equity	307,530	274,714
Total liabilities and stockholders' equity	$ 835,848	$ 814,897