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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |  |
Net income | $ 38,386 | $ 34,243 | $ 48,543
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 14,344 | 15,316 | 14,667
Bad debt provision | 35,604 | 31,969 | 10,483
Deferred income tax (benefit) expense | (4,820) | 4,907 | 4,083
Share-based compensation expense | 8,985 | 9,214 | 8,827
Amortization of premium on marketable securities | 2,144 | 2,219 | 2,275
Unrealized (gain) loss on deferred compensation fund investments | (6,645) | 9,422 | (6,397)
Changes in fair value of other long-term liabilities | (1,154) | (2,353) | 0
Net loss on disposals of property and equipment | 818 | 1,138 | 1,469
Changes in operating assets and liabilities: |  |  |
Accounts and notes receivable | (74,559) | (78,707) | (37,185)
Inventories and supplies | 2,685 | 4,851 | 5,599
Prepaid expenses and other assets | 12,750 | 9,935 | (12,250)
Deferred compensation funding, net | (674) | 3,913 | 6,661
Accounts payable and other accrued expenses | 7,430 | (13,748) | 10,244
Accrued payroll, accrued and withheld payroll taxes | 4,186 | (23,859) | (25,878)
Income taxes receivable and payable | 572 | 2,184 | (8,420)
Accrued insurance claims | (4,329) | (687) | 6,966
Deferred compensation liability | 7,775 | (18,124) | 7,421
Net cash provided by (used in) operating activities | 43,498 | (8,167) | 37,108
Cash flows (used in) from investing activities: |  |  |
Disposals of property and equipment | 121 | 393 | 211
Additions to property and equipment | (5,406) | (5,210) | (5,687)
Purchases of marketable securities | 0 | (2,875) | (20,335)
Sales of marketable securities | 1,992 | 10,386 | 26,697
Cash paid for acquisitions | 0 | (114) | (23,876)
Net cash (used in) provided by investing activities | (3,293) | 2,580 | (22,990)
Cash flows used in financing activities: |  |  |
Dividends paid | 0 | (63,373) | (62,226)
Reissuance of treasury stock pursuant to Dividend Reinvestment Plan | 0 | 106 | 92
Proceeds from the exercise of stock options | 0 | 410 | 2,425
Purchases of treasury stock | (11,283) | 0 | (21,535)
Short-term borrowings, net of repayments | 0 | 25,000 | 0
Payments of statutory withholding on net issuance of restricted stock units | (871) | (1,071) | (1,410)
Net cash used in financing activities | (12,154) | (38,928) | (82,654)
Net change in cash and cash equivalents | 28,051 | (44,515) | (68,536)
Cash and cash equivalents at beginning of the period | 26,279 | 70,794 | 139,330
Cash and cash equivalents at end of the period | 54,330 | 26,279 | 70,794
Supplementary cash flow information: |  |  |
Cash paid for interest | 7,809 | 2,822 | 1,385
Cash paid for income taxes | 5,585 | 3,309 | 21,233
Accrued variable consideration for acquisition of businesses | $ 0 | $ 0 | $ 10,456

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