CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 12,080	$ 13,929	$ 14,595
Adjustments to reconcile net income to net cash provided by operating activities:
Expense (benefit) for deferred income taxes	2,430	(87)	1,276
Depreciation and software amortization	23,081	20,391	18,775
Benefit related to embedded option		(738)	(1,610)
Amortization of intangible assets	21,323	9,190	7,409
Share-based compensation expense	7,369	6,727	8,543
Change in valuation of contingent consideration	(7,166)
Intangible asset impairment expense	1,278
Provision for bad debts	2,303	2,146	1,732
Other, net	1,211	463	597
Changes in operating assets and liabilities, net of effects from business acquisitions:
Trade accounts receivable	(9,029)	(17,011)	3,520
Prepaid expenses and other assets	40	18	(11)
Accounts payable and other liabilities	(7,603)	(1,117)	(1,255)
Deferred revenue	1,784	662	(1,603)
Excess tax benefit related to share-based compensation	(77)		(579)
Other	1,659	(136)	433
Net cash provided by operating activities	50,683	34,437	51,822
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(12,320)	(11,092)	(10,301)
Internally developed software costs	(6,320)	(8,131)	(7,562)
Cash paid for business acquisitions, net of cash acquired	(166,930)	(51,548)
Other investing activities, net	106	11	302
Net cash used in investing activities	(185,464)	(70,760)	(17,561)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver	214,000	78,000
Payments on revolver	(64,000)	(11,000)
Debt issuance costs	(1,940)	(1,460)
Payments under long-term obligations	(2,953)	(27,508)	(6,065)
Excess tax benefit related to share-based compensation	77		579
Common stock repurchases (Note 7)	(10,858)	(44,160)	(1,782)
Cash dividends paid (Note 7)	(5,514)	(2,632)
Proceeds from issuance of common stock under share-based compensation plans	2,857	1,460	2,863
Net cash provided by (used in) financing activities	131,669	(7,300)	(4,405)
Effect of exchange rate changes on cash	511	76	124
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(2,601)	(43,547)	29,980
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	5,439	48,986	19,006
CASH AND CASH EQUIVALENTS, END OF YEAR	$ 2,838	$ 5,439	$ 48,986