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Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Cash flows from operating activities: |  |  |
Net income | $ 295,765 | $ 304,690 | $ 267,514
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 189,867 | 165,343 | 146,466
(Gain) loss on sale of property and equipment | 168 | (3,592) | (716)
Deferred income taxes | 34,808 | 43,642 | 25,544
Share-based compensation | 1,410 | 0 | 0
Changes in assets and liabilities |  |  |
Customer and other receivables, net | (11,176) | (8,672) | (54,443)
Prepaid expenses and other assets | (21,227) | (6,097) | (4,316)
Accounts payable | 22,442 | 21,460 | 8,526
Compensation, benefits and other accrued liabilities | 4,965 | 14,699 | 13,672
Claims and insurance accruals | 6,548 | 11,549 | 7,225
Income taxes, net | 21,184 | 11,511 | (36,758)
Other liabilities | 20,829 | (653) | 18,960
Net cash provided by operating activities | 565,583 | 553,880 | 391,674
Cash flows from investing activities: |  |  |
Purchase of property and equipment | (417,941) | (462,059) | (367,680)
Proceeds from sale of property and equipment | 10,541 | 24,442 | 21,866
Net cash used in investing activities | (407,400) | (437,617) | (345,814)
Cash flows from financing activities: |  |  |
Principal payments under long-term debt agreements | (26,488) | (37,778) | (35,715)
Net (payments) proceeds on revolving line of credit | (2,342) | 12,317 | 0
Payments for Repurchase of Common Stock | (130,316) | (114,117) | (5,532)
Other financing activities, net | (338) | 0 | 0
Net cash (used in) provided by financing activities | (159,484) | (139,578) | (41,247)
(Decrease) increase in cash and cash equivalents | (1,301) | (23,315) | 4,613
Cash and cash equivalents at beginning of year | 11,472 | 34,787 | 30,174
Cash and cash equivalents at end of year | 10,171 | 11,472 | 34,787
Income taxes paid | 123,395 | 130,058 | 176,221
Interest paid | 6,417 | 8,414 | 9,710
Capitalized interest | $ 2,262 | $ 2,526 | $ 2,884

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