CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 3,948	$ 771
Restricted cash	23,190	22,112
Accounts receivable, net	179,122	143,107
Deferred income taxes - current	6,246	4,640
Other current assets	14,184	14,364
Assets of discontinued operations	40	1,092
Current assets before funds held for clients	226,730	186,086
Funds held for clients	101,703	164,389
Total current assets	328,433	350,475
Property and equipment, net	19,045	19,167
Goodwill and other intangible assets, net	498,972	469,083
Assets of deferred compensation plan	57,756	51,953
Deferred income taxes - non-current, net		542
Other assets	6,672	6,238
Total assets	910,878	897,458
Current liabilities:
Accounts payable	44,493	37,529
Income taxes payable - current	4,951	25
Accrued personnel costs	30,471	38,568
Notes payable - current	374	1,602
Convertible notes, net - current	16,817
Contingent purchase price liability - current	13,801	12,243
Other current liabilities	13,105	12,766
Liabilities of discontinued operations	194	370
Current liabilities before client fund obligations	124,206	103,103
Client fund obligations	101,596	164,311
Total current liabilities	225,802	267,414
Convertible notes, net	109,939	125,256
Bank debt	81,200	48,500
Income taxes payable - non-current	4,865	6,154
Deferred income taxes - non-current, net	3,182
Deferred compensation plan obligations	57,756	51,953
Contingent purchase price liability	18,995	12,953
Other non-current liabilities	10,038	10,782
Total liabilities	511,777	523,012
STOCKHOLDERS' EQUITY
Common stock	1,167	1,149
Additional paid-in capital	593,543	580,576
Retained earnings	214,390	190,994
Treasury stock	(409,371)	(397,548)
Accumulated other comprehensive loss	(628)	(725)
Total stockholders' equity	399,101	374,446
Total liabilities and stockholders' equity	$ 910,878	$ 897,458