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v3.19.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Cash flows from operating activities: |  |
Net income | $ 9,156 | $ 72
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 3,489 | 2,410
Bad debt provision | 18,470 | 37,137
Stock-based compensation expense | 1,838 | 1,569
Amortization of premium on marketable securities | 382 | 339
Unrealized gain on deferred compensation fund investments | (3,445) | (300)
Changes in operating assets and liabilities: |  |
Accounts and notes receivable | (25,986) | (16,769)
Inventories and supplies | 300 | 119
Prepaid expenses and other assets | (323) | (3,483)
Deferred compensation funding | 744 | (259)
Accounts payable and other accrued expenses | (5,322) | (5,478)
Accrued payroll, accrued and withheld payroll taxes | 18,465 | 18,546
Income taxes payable | (5,730) | (14,439)
Accrued insurance claims | 2,622 | 3,443
Deferred compensation liability | 2,917 | 1,024
Net cash provided by operating activities | 17,577 | 23,931
Cash flows from investing activities: |  |
Disposals of fixed assets | 64 | 63
Additions to property and equipment | (1,336) | (1,335)
Purchases of marketable securities | (4,277) | (5,397)
Sales of marketable securities | 3,539 | 2,467
Net cash used in investing activities | (2,010) | (4,202)
Cash flows from financing activities: |  |
Dividends paid | (14,588) | (14,149)
Reissuance of treasury stock pursuant to Dividend Reinvestment Plan | 24 | 24
Proceeds from the exercise of stock options | 1,913 | 5,005
Net repayments from short-term borrowings | 0 | (9,382)
Payments of statutory withholding on net issuance of restricted stock units | (579) | (295)
Net cash used in financing activities | (13,230) | (18,797)
Net change in cash and cash equivalents | 2,337 | 932
Cash and cash equivalents at beginning of the period | 26,025 | 9,557
Cash and cash equivalents at end of the period | $ 28,362 | $ 10,489

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