Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 71,867	$ 62,543
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	16,610	17,528
Bad debt expense, net of recoveries	1,974	3,697
Adjustment to contingent earnout liability	322	3,290
Stock-based compensation expense	5,258	5,358
Other	1,395	(1,989)
Changes in assets and liabilities, net of acquisitions and divestitures:
Accounts receivable, net	(54,025)	(38,937)
Other assets	495	(3,474)
Accounts payable	5,045	108
Income taxes payable	8,917	9,458
Accrued personnel costs	(9,160)	8,986
Other liabilities	1,020	(3,134)
Operating cash flows provided by continuing operations	49,718	63,434
Operating cash flows used in discontinued operations	(304)	(162)
Net cash provided by operating activities	49,414	63,272
Cash flows from investing activities:
Business acquisitions and purchases of client lists, net of cash acquired	(11,740)	(24,612)
Purchases of client fund investments	(21,171)	(10,745)
Proceeds from the sales and maturities of client fund investments	17,758	8,701
Increase in funds held for clients	406	(3,161)
Additions to property and equipment	(10,279)	(9,800)
Other	335	350
Net cash used in investing activities	(24,691)	(39,267)
Cash flows from financing activities:
Proceeds from bank debt	496,698	563,800
Payment of bank debt	(472,198)	(575,200)
Payment for acquisition of treasury stock	(22,826)	(8,121)
Decrease in client funds obligations	(45,818)	(76,285)
Proceeds from exercise of stock options	4,855	6,076
Payment of contingent consideration for acquisitions	(16,850)	(11,677)
Other, net	(334)	(1,431)
Net cash used in financing activities	(56,473)	(102,838)
Net decrease in cash, cash equivalents and restricted cash	(31,750)	(78,833)
Cash, cash equivalents and restricted cash at beginning of year	130,554	182,262
Cash, cash equivalents and restricted cash at end of period	98,804	103,429
Reconciliation of cash, cash equivalents and restricted cash to theConsolidated Balance Sheets:
Cash and cash equivalents	2,723	3,493
Restricted cash	35,739	32,551
Cash equivalents included in funds held for clients	60,342	67,385
Cash, cash equivalents and restricted cash at end of period	$ 98,804	$ 103,429