Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 54,061	$ 48,957
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	10,976	11,676
Bad debt expense, net of recoveries	1,506	3,172
Adjustment to contingent earnout liability	(193)	3,050
Stock-based compensation expense	3,399	3,850
Other	72	(2,840)
Changes in assets and liabilities, net of acquisitions and divestitures:
Accounts receivable, net	(65,684)	(44,774)
Other assets	362	(4,955)
Accounts payable	28,987	18,796
Income taxes payable	8,518	10,245
Accrued personnel costs	(21,703)	(3,302)
Other liabilities	(602)	(2,617)
Operating cash flows provided by continuing operations	19,699	41,258
Operating cash flows used in discontinued operations	(119)	(152)
Net cash provided by operating activities	19,580	41,106
Cash flows from investing activities:
Business acquisitions and purchases of client lists, net of cash acquired	(1,293)	(23,740)
Purchases of client fund investments	(13,920)	(10,345)
Proceeds from the sales and maturities of client fund investments	10,556	7,273
Increase in funds held for clients	369	873
Additions to property and equipment, net	(6,916)	(5,493)
Other	325	348
Net cash used in investing activities	(10,879)	(31,084)
Cash flows from financing activities:
Proceeds from bank debt	265,796	439,000
Payment of bank debt	(242,296)	(437,300)
Payment for acquisition of treasury stock	(21,732)	(4,409)
Decrease in client funds obligations	(34,947)	(71,293)
Proceeds from exercise of stock options	3,043	4,425
Payment of contingent consideration for acquisitions	(11,718)	(4,632)
Other, net	(222)	(1,321)
Net cash used in financing activities	(42,076)	(75,530)
Net decrease in cash, cash equivalents and restricted cash	(33,375)	(65,508)
Cash, cash equivalents and restricted cash at beginning of year	130,554	182,262
Cash, cash equivalents and restricted cash at end of period	97,179	116,754
Reconciliation of cash, cash equivalents and restricted cash to theConsolidated Balance Sheets:
Cash and cash equivalents	2,628	1,921
Restricted cash	30,126	39,535
Cash equivalents included in funds held for clients	64,425	75,298
Cash, cash equivalents and restricted cash at end of period	$ 97,179	$ 116,754