CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 7,196	$ 5,855
Adjustments to reconcile net income to net cash provided by operating activities:
Expense for deferred income taxes	1,097	2,366
Depreciation and software amortization	13,251	11,013
Amortization of identifiable intangible and leasehold assets	13,521	9,961
Fair value adjustment to contingent consideration	(5,471)	(2,775)
Intangible asset impairment expense	1,777
Share-based compensation expense	3,403	3,517
Provision for bad debts	1,033	1,042
Accretion of discount	1,318	54
Other, net	273	813
Changes in operating assets and liabilities:
Trade accounts receivable	(10,214)	(12,840)
Prepaid expenses and other assets	3,901	(1,226)
Accounts payable and other liabilities	6,088	(9,954)
Excess tax benefit related to share-based compensation		(99)
Other	1,400	1,692
Net cash provided by operating activities	38,573	9,419
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(8,344)	(7,381)
Internally developed software costs	(3,276)	(3,201)
Payment of deferred acquisition consideration	(8,400)
Cash paid for business acquisition, net of cash acquired		(99,232)
Proceeds from sale of assets	488
Other investing activities, net	75	52
Net cash used in investing activities	(19,457)	(109,762)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver	37,000	139,000
Payments on revolver	(42,000)	(26,000)
Payments under long-term obligations	(3,012)	(1,130)
Excess tax benefit related to share-based compensation		99
Common stock repurchases (Note 9)	(3,489)	(10,858)
Cash dividends paid (Note 9)	(3,590)	(2,479)
Debt issuance costs		(1,789)
Issuance of common stock under share-based compensation plans	130	2,279
Net cash (used in) provided by financing activities	(14,961)	99,122
Effect of exchange rate changes on cash	(95)	584
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	4,060	(637)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	2,838	5,439
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 6,898	$ 4,802