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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Net Cash Provided by (Used in) Operating Activities [Abstract] |  |  |
Net income | $ 171,382 | $ 179,350 | $ 124,080
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 42,708 | 40,660 | 38,547
Stock-based compensation | 52,996 | 50,080 | 40,623
Deferred income taxes | (4,814) | (10,641) | 4,711
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] |  |  |
Accounts receivable | (71,114) | (109,458) | (120,560)
Prepaid insurance and related assets | 4,693 | (421) | (1,121)
Other current assets | (14,215) | (5,206) | (13,851)
Other assets and ROU assets | 23,523 | 2,600 | 5,240
Accounts payable | 2,961 | 1,320 | 209
Payroll taxes and other payroll deductions payable | 10,288 | 88,193 | 89,932
Accrued worksite employee payroll costs | 45,797 | 103,744 | 74,817
Accrued health insurance costs | (6,942) | 3,401 | 17,316
Accrued workers’ compensation costs | (9,787) | (10,114) | (197)
Accrued corporate payroll, commissions and other accrued liabilities | (44,620) | (5,179) | 14,716
Income taxes payable/receivable | (4,368) | 19,362 | (14,307)
Total adjustments | 27,106 | 168,341 | 136,075
Net cash provided by operating activities | 198,488 | 347,691 | 260,155
Marketable securities: |  |  |
Purchases | (47,983) | (46,748) | (58,202)
Proceeds from maturities | 38,635 | 44,955 | 60,045
Proceeds from dispositions | 27,735 | 0 | 0
Proceeds from Sale of Property, Plant, and Equipment [Abstract] |  |  |
Property and equipment purchases | (40,117) | (30,329) | (32,856)
Net cash used in investing activities | (21,730) | (32,122) | (31,013)
Cash flows from financing activities: |  |  |
Purchase of treasury stock | (131,519) | (73,285) | (69,725)
Dividends paid | (84,219) | (76,592) | (144,179)
Other | 60,726 | 8,727 | 5,831
Net cash used in financing activities | (155,012) | (141,150) | (208,073)
Net increase in cash, cash equivalents, restricted cash and funds held for clients | 21,746 | 174,419 | 21,069
Cash, cash equivalents, restricted cash and funds held for clients beginning of period | 1,013,919 | 839,500 | 786,699
Cash, cash equivalents, restricted cash and funds held for clients end of period | 1,035,665 | 1,013,919 | 839,500
Supplemental cash flow information: |  |  |
Income Taxes Paid, Net | 62,879 | 57,354 | 53,835
Interest Paid, Excluding Capitalized Interest, Operating Activities | 22,067 | 13,402 | 7,268
ROU assets obtained in exchange for lease obligations | 22,177 | 9,736 | 19,572
Excise tax liability accrued for common stock repurchases | $ 544 | 0 | 0
Previously Reported [Member] |  |  |
Cash flows from financing activities: |  |  |
Cash, cash equivalents, restricted cash and funds held for clients beginning of period |  | $ 807,768 |
Cash, cash equivalents, restricted cash and funds held for clients end of period |  |  | $ 807,768

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