Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 45,530	$ 40,751
Adjustments to reconcile net income to net cash provided by operating activities:
Loss from discontinued operations, net of tax	776	421
Gain on sale of operations, net	(45)	(480)
Depreciation and amortization expense	17,167	16,359
Amortization of discount on notes and deferred financing costs	392	393
Amortization of discount on contingent earnout liability	430	223
Bad debt expense, net of recoveries	4,265	3,291
Adjustment to contingent earnout liability	(651)	(936)
Deferred income taxes	(1,512)	1,830
Employee stock awards	4,247	4,332
Excess tax benefits from share based payment arrangements	(2,884)	(859)
Changes in assets and liabilities, net of acquisitions and divestitures:
Restricted cash	(4,224)	(8,154)
Accounts receivable, net	(38,095)	(38,666)
Other assets	2,293	(6,339)
Accounts payable	(61)	6,971
Income taxes payable	12,509	10,250
Accrued personnel costs	(7,368)	(175)
Other liabilities	1,606	5,178
Operating cash flows provided by continuing operations	34,375	34,390
Operating cash flows (used in) provided by discontinued operations	(748)	507
Net cash provided by operating activities	33,627	34,897
Cash flows from investing activities:
Business acquisitions and purchases of client lists, net of cash acquired	(27,406)	(38,238)
Purchases of client fund investments	(14,046)	(7,300)
Proceeds from the sales and maturities of client fund investments	6,495	7,132
Proceeds from sales of divested operations	45	425
Increase in funds held for clients	87,224	75,632
Additions to property and equipment	(8,870)	(2,843)
Collection of notes receivable	21	356
Net cash provided by investing activities	43,463	35,164
Cash flows from financing activities:
Proceeds from bank debt	425,400	355,200
Payment of bank debt	(410,800)	(341,400)
Payment on early extinguishment of convertible debt		(760)
Payment for acquisition of treasury stock	(10,261)	(7,957)
Decrease in client funds obligations	(79,736)	(75,540)
Proceeds from exercise of stock options	6,227	5,258
Payment of contingent consideration for acquisitions and client list purchases	(9,827)	(5,807)
Excess tax benefit from exercise of stock awards		859
Payment of notes payable	(309)	(244)
Deferred financing costs		(6)
Net cash used in financing activities	(79,306)	(70,397)
Net decrease in cash and cash equivalents	(2,216)	(336)
Cash and cash equivalents at beginning of year	3,494	850
Cash and cash equivalents at end of period	$ 1,278	$ 514