Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 178,408	$ 146,733
Short-term investments	10,147	12,097
Total cash, cash equivalents and short-term investments	188,555	158,830
Trade accounts receivable:
Billed, net of allowance of $2,925 and $2,421	170,909	179,804
Unbilled and other	27,791	30,981
Deferred income taxes	18,654	19,982
Income taxes receivable	1,324	4,139
Other current assets	17,400	16,224
Total current assets	424,633	409,960
Property and equipment, net of depreciation of $120,117 and $116,125	37,292	41,154
Software, net of amortization of $59,565 and $56,521	28,183	29,966
Goodwill	222,124	220,013
Client contracts, net of amortization of $166,174 and $159,225	94,359	98,403
Deferred income taxes	1,681	1,008
Other assets	13,951	14,393
Total assets	822,223	814,897
LIABILITIES AND STOCKHOLDERS' EQUITY
Current maturities of long-term debt	20,500	27,000
Client deposits	31,768	30,523
Trade accounts payable	28,512	27,198
Accrued employee compensation	31,188	42,005
Income taxes payable	14,137	2,334
Deferred revenue	52,329	44,824
Other current liabilities	18,286	23,501
Total current liabilities	196,720	197,385
Non-current liabilities:
Long-term debt, net of unamortized original issue discount of $29,053 and $30,256	283,447	282,744
Deferred revenue	8,486	8,631
Income taxes payable	4,226	4,114
Deferred income taxes	24,534	28,188
Other non-current liabilities	19,618	19,121
Total non-current liabilities	340,311	342,798
Total liabilities	537,031	540,183
Stockholders' equity:
Preferred stock, par value $.01 per share; 10,000,000 shares authorized; zero shares issued and outstanding
Common stock, par value $.01 per share; 100,000,000 shares authorized; 34,127,496 and 33,822,232 shares outstanding	652	645
Additional paid-in capital	450,100	449,376
Treasury stock, at cost, 31,034,308 and 30,551,519 shares	(720,083)	(714,893)
Accumulated other comprehensive income (loss):
Unrealized gain on short-term investments, net of tax	1	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	(769)	(618)
Cumulative foreign currency translation adjustments	1,293	(1,998)
Accumulated earnings	555,801	543,995
Total stockholders' equity	285,192	274,714
Total liabilities and stockholders' equity	$ 822,223	$ 814,897