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Consolidated Statements of Cash Flows $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Cash flows from operating activities: |  |  |
Net income | $ 70,714 | $ 61,570 | $ 50,377
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Gain on sale of operations, net of tax | (417) | (1,025) | (45)
Depreciation and amortization expense | 22,345 | 23,675 | 23,061
Bad debt expense, net of recoveries | 2,415 | 3,665 | 5,137
Adjustment to contingent earnout liability, net | 1,599 | 2,617 | (1,494)
Deferred income taxes | 9,695 | 5,775 | 3,674
Employee stock awards | 7,254 | 6,866 | 5,705
Excess tax benefits from share based payment arrangements | (4,773) | (3,260) | (3,837)
Other, net | 1,077 | 400 | 1,178
Changes in assets and liabilities, net of acquisitions and divestitures: |  |  |
Accounts receivable, net | (15,529) | (10,668) | (13,849)
Other assets | 907 | (3,344) | 3,180
Accounts payable | 9,829 | 974 | 3,738
Income taxes payable | (687) | 426 | (2,071)
Accrued personnel costs | (4,093) | 17,901 | (599)
Other liabilities | (1,813) | (140) | 3,508
Net cash provided by continuing operations | 98,523 | 105,432 | 77,663
Operating cash flows (used in) provided by discontinued operations | (338) | (184) | (627)
Net cash provided by operating activities | 98,185 | 105,248 | 77,036
Cash flows from investing activities: |  |  |
Business acquisitions and purchases of client lists, net of cash acquired | (11,744) | (29,080) | (28,093)
Purchases of client fund investments | (27,216) | (18,426) | (15,546)
Proceeds from the sales and maturities of client fund investments | 23,958 | 12,238 | 8,785
Additions to property and equipment | (13,873) | (14,624) | (11,892)
Other, net | 1,190 | 2,316 | (1,935)
Net cash used in investing activities | (27,685) | (47,576) | (48,681)
Cash flows from financing activities: |  |  |
Proceeds from bank debt | 648,648 | 690,173 | 533,900
Payment of bank debt | (678,648) | (733,173) | (546,800)
Payment for acquisition of treasury stock | (27,163) | (17,484) | (19,735)
(Decrease) increase in client funds obligations | 10,069 | (41,509) | (10,273)
Payment of contingent consideration of acquisitions | (17,457) | (11,787) | (10,515)
Proceeds from exercise of stock options | 10,608 | 6,291 | 8,008
Other, net | (606) | (1,891) | (178)
Net cash used in financing activities | (54,549) | (109,380) | (45,593)
Net (decrease) increase in cash, cash equivalents and restricted cash | 15,951 | (51,708) | (17,238)
Cash, cash equivalents and restricted cash at beginning of year | 130,554 | 182,262 | 199,500
Cash, cash equivalents and restricted cash at end of year | 146,505 | 130,554 | 182,262
Reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets |  |  |
Cash and cash equivalents | 567 | 640 | 424
Restricted cash | 29,595 | 27,481 | 32,985
Cash equivalents included in funds held for clients | 116,343 | 102,433 | 148,853
Cash, cash equivalents and restricted cash at end of year | 146,505 | 130,554 | 182,262
Supplemental disclosures of cash flow information: |  |  |
Cash paid for interest | 5,556 | 6,340 | 6,117
Cash paid for income taxes, net of income tax refunds | $ 17,497 | $ 15,327 | $ 25,085

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- Definition Amount of cash (inflow) outflow from investing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116856206&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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