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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash Flows from Operating Activities: |  |  |
Net income | $ 827,543 | $ 797,883 | $ 771,312
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation & amortization | 490,392 | 453,076 | 447,883
Gains on sales of assets and businesses, net of losses | (7,540) | (2,513) | 0
Stock-based compensation expense | 69,431 | 66,581 | 56,738
Costs related to extinguishment of debt | 0 | 2,727 | 0
Provision for asset impairment | 97,631 | 49,310 | 0
Changes in assets & liabilities, net of effects from acquisitions and dispositions: |  |  |
Accounts receivable | (42,056) | (42,239) | (24,719)
Accrued interest | 209 | (4,478) | 705
Accrued and deferred income taxes | (25,194) | (54,052) | (6,405)
Other working capital accounts | 39,664 | 24,696 | (15,165)
Other assets and deferred charges | (27,205) | (31,429) | (27,936)
Other | 7,703 | (1,536) | 21,769
Accrued insurance expense, net of commercial premiums paid | 105,672 | 92,863 | 102,595
Payments made in settlement of self-insurance claims | (97,781) | (76,147) | (79,192)
Net cash provided by operating activities | 1,438,469 | 1,274,742 | 1,247,585
Cash Flows from Investing Activities: |  |  |
Property and equipment additions, net of disposals | (634,095) | (664,962) | (557,506)
Acquisition of property and businesses | (8,005) | (110,464) | (22,878)
(Outflows) Inflows from foreign exchange contracts that hedge our net U.K. investment | (19,763) | 66,151 | (64,333)
Proceeds received from sales of assets and businesses | 9,450 | 13,502 | 108
Costs incurred for purchase and implementation of information technology applications | (21,418) | (36,243) | (29,047)
Decrease (Increase) in capital reserves of commercial insurance subsidiary | 0 | 100 | (3,100)
Investment in, and advances to, joint venture and other | (14,579) | (15,331) | (7,976)
Net cash used in investing activities | (688,410) | (747,247) | (684,732)
Cash Flows from Financing Activities: |  |  |
Reduction of long-term debt | (57,142) | (830,496) | (143,106)
Additional borrowings | 39,220 | 791,247 | 41,100
Financing costs | 0 | (13,787) | (76)
Repurchase of common shares | (770,504) | (397,425) | (364,401)
Dividends paid | (53,003) | (37,342) | (38,211)
Issuance of common stock | 10,806 | 10,196 | 10,254
Profit distributions to noncontrolling interests | (15,859) | (14,595) | (24,713)
Capital contributions from minority members | 1,446 | 0 | 0
Net cash used in financing activities | (845,036) | (492,202) | (519,153)
Effect of exchange rate changes on cash and cash equivalents | 959 | (2,905) | 1,647
(Decrease) Increase in cash and cash equivalents | (94,018) | 32,388 | 45,347
Cash, cash equivalents and restricted cash, beginning of period | 199,685 | 167,297 | 121,950
Cash, cash equivalents and restricted cash, end of period | 105,667 | 199,685 | 167,297
Supplemental Disclosures of Cash Flow Information: |  |  |
Interest paid | 157,406 | 150,293 | 135,533
Income taxes paid, net of refunds | 260,622 | 293,837 | 370,855
Noncash purchases of property and equipment | 63,514 | 77,674 | 82,496
Right-of-use assets obtained in exchange for lease obligations | $ 383,857 | $ 0 | $ 0

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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