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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
OPERATING ACTIVITIES |  |
Net income | $ 47,186 | $ 45,534
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 85,189 | 79,967
Amortization of intangibles | 2,942 | 3,365
Pension settlement expense, including termination expense | 89 | 8,135
Share-based compensation expense | 7,956 | 7,268
Provision for losses on accounts receivable | 2,170 | 832
Change in deferred income taxes | 2,831 | 14,099
Gain on sale of property and equipment and lease termination | (3,280) | (1,384)
Changes in operating assets and liabilities: |  |
Receivables | (38,905) | 4,216
Prepaid expenses | 809 | (265)
Other assets | 3,918 | (4,236)
Income taxes | 3,065 | (7,883)
Operating right-of-use assets and lease liabilities, net | 234 | 526
Accounts payable, accrued expenses, and other liabilities | 37,062 | (12,161)
NET CASH PROVIDED BY OPERATING ACTIVITIES | 151,266 | 138,013
INVESTING ACTIVITIES |  |
Purchases of property, plant and equipment, net of financings | (20,146) | (69,773)
Proceeds from sale of property and equipment | 8,943 | 4,748
Purchases of short-term investments | (159,253) | (105,747)
Proceeds from sale of short-term investments | 192,563 | 88,730
Capitalization of internally developed software | (9,568) | (8,500)
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES | 12,539 | (90,542)
FINANCING ACTIVITIES |  |
Borrowings under credit facilities | 180,000 |
Borrowings under accounts receivable securitization program | 45,000 |
Proceeds from notes payable |  | 9,552
Payments on long-term debt | (309,640) | (43,773)
Net change in book overdrafts | 349 | (5,570)
Deferred financing costs |  | (562)
Payment of common stock dividends | (6,122) | (6,145)
Purchases of treasury stock | (5,667) | (6,115)
Payments for tax withheld on share-based compensation | (1,989) | (1,206)
NET CASH USED IN FINANCING ACTIVITIES | (98,069) | (53,819)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 65,736 | (6,348)
Cash and cash equivalent at beginning of period | 201,909 | 190,186
CASH AND CASH EQUIVALENTS CASH AT END OF PERIOD | 267,645 | 183,838
NONCASH INVESTING ACTIVITIES |  |
Equipment financed | 53,045 | 40,966
Accruals for equipment received | 2,146 | 18,949
Lease liabilities arising from obtaining right-of-use assets | $ 60,535 | $ 26,810

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