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v3.20.4

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities: |  |  |
Net income | $ 98,682 | $ 64,581 | $ 83,524
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 14,268 | 13,940 | 9,272
Bad debt provision | 9,636 | 25,480 | 51,387
Deferred income tax benefit | (5,893) | (684) | (13,013)
Share-based compensation expense | 7,872 | 6,865 | 5,900
Amortization of premium on marketable securities | 1,822 | 1,434 | 1,373
Unrealized (gain) loss on deferred compensation fund investments | (9,390) | (7,257) | 1,429
Loss on sale of assets | 1,335 | 0 | 0
Changes in operating assets and liabilities: |  |  |
Accounts and notes receivable | 46,158 | (29,532) | (44,363)
Inventories and supplies | 4,931 | 4,765 | 950
Prepaid expenses and other assets | (756) | 3,480 | 1,054
Deferred compensation funding | (52) | (738) | (1,536)
Accounts payable and other accrued expenses | (7,250) | (9,532) | (9,144)
Accrued payroll, accrued and withheld payroll taxes | 59,527 | 3,517 | 6,085
Income taxes payable | (8,075) | 7,845 | (5,099)
Accrued insurance claims | (5,194) | 8,482 | 450
Deferred compensation liability | 9,592 | 935 | (8,238)
Net cash provided by operating activities | 217,213 | 93,581 | 80,031
Cash flows from investing activities: |  |  |
Disposals of fixed assets | 274 | 199 | 640
Additions to property and equipment | (4,341) | (4,368) | (4,940)
Purchases of marketable securities | (39,047) | (33,544) | (14,297)
Sales of marketable securities | 6,269 | 21,256 | 9,011
Net cash used in investing activities | (36,845) | (16,457) | (9,586)
Cash flows from financing activities: |  |  |
Dividends paid | (60,705) | (58,951) | (57,201)
Reissuance of treasury stock pursuant to Dividend Reinvestment Plan | 93 | 90 | 89
Proceeds from the exercise of stock options | 2,920 | 3,628 | 8,801
Repayments of short-term borrowings, net | (10,000) | (20,000) | (5,382)
Payments of statutory withholding on net issuance of restricted stock units | (675) | (587) | (284)
Net cash used in financing activities | (68,367) | (75,820) | (53,977)
Net change in cash and cash equivalents | 112,001 | 1,304 | 16,468
Cash and cash equivalents at beginning of the period | 27,329 | 26,025 | 9,557
Cash and cash equivalents at end of the period | 139,330 | 27,329 | 26,025
Supplementary cash flow information: |  |  |
Cash paid for interest | 1,374 | 3,459 | 3,094
Cash paid for income taxes, net of refunds | 44,865 | 20,026 | 37,680
Contingent shares settled pursuant to acquisition | $ 0 | $ 1,012 | $ 2,291

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