Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 34,107	$ 29,759	$ 85,863
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Loss (gain) from discontinued operations, net of tax	896	655	(60,484)
Gain on sale of operations, net of tax	(84)	(1,303)	(79)
Loss on early extinguishment of convertible debt	833	1,529
Depreciation and amortization expense	20,389	19,831	18,291
Amortization of discount on notes and deferred financing costs	2,271	4,169	4,568
Bad debt expense, net of recoveries	5,658	5,484	4,387
Adjustment to contingent earnout liability	(2,709)	(5,951)	1,208
Deferred income taxes	1,734	2,043	(416)
Employee stock awards	5,729	6,205	5,655
Excess tax benefits from share based payment arrangements	(948)	(503)	(53)
Changes in assets and liabilities, net of acquisitions and divestitures:
Restricted cash	3,433	(6,182)	(2,507)
Accounts receivable, net	(15,276)	(6,246)	(10,680)
Other assets	(1,269)	(3,027)	(3,244)
Accounts payable	(1,288)	(3,826)	1,482
Income taxes payable	(3,674)	(338)	(273)
Accrued personnel costs	(349)	1,643	3,398
Other liabilities	(3,057)	(825)	(5,109)
Net cash provided by continuing operations	46,396	43,117	42,007
Operating cash flows provided by (used in) discontinued operations	990	801	(43,525)
Net cash provided by (used in) operating activities	47,386	43,918	(1,518)
Cash flows from investing activities:
Business acquisitions and purchases of client lists, net of cash acquired	(14,636)	(45,972)	(9,747)
Purchases of client fund investments	(15,429)	(14,089)	(5,650)
Proceeds from the sales and maturities of client fund investments	10,664	6,671	4,896
Proceeds on sales of divested and discontinued operations	2,938	4,537	200,934
Increase (decrease) in funds held for clients	15,921	(11,223)	(9,438)
Additions to property and equipment, net	(7,390)	(4,837)	(6,208)
Collection of notes receivable	955	555	515
Other	20	24	(10)
Net cash (used in) provided by continuing operations	(6,957)	(64,334)	175,292
Investing cash flows provided by (used in) discontinued operations	8	416	(300)
Net cash (used in) provided by investing activities	(6,949)	(63,918)	174,992
Cash flows from financing activities:
Proceeds from bank debt	408,800	404,500	312,400
Payment of bank debt	(310,400)	(345,600)	(472,800)
Payment on extinguishment of convertible debt	(88,964)	(30,621)
Payment for acquisition of treasury stock	(36,482)	(28,137)	(26,468)
(Decrease) increase in client funds obligations	(12,617)	19,624	10,192
Payment of contingent consideration of acquisitions	(11,987)	(7,991)	(10,361)
Proceeds from exercise of stock options	10,728	11,356	13,976
Payment of notes payable	(574)	(1,690)	(594)
Deferred financing costs	(18)	(1,736)
Excess tax benefit from exercise of stock awards	948	503	53
Net cash (used in) provided by financing activities	(40,566)	20,208	(173,602)
Net (decrease) increase in cash and cash equivalents	(129)	208	(128)
Cash and cash equivalents at beginning of year	979	771	899
Cash and cash equivalents at end of year	$ 850	$ 979	$ 771