Annual report pursuant to Section 13 and 15(d)

Statements Of Cash Flows

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Statements Of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Cash flows from operating activities:      
Net income $ 304,690 $ 267,514 $ 206,113
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 165,343 146,466 127,072
(Gain) loss on sale of property and equipment (3,592) (716) (5,743)
Deferred income taxes 43,642 25,544 32,736
Changes in assets and liabilities      
Customer and other receivables, net (8,672) (54,443) (30,063)
Prepaid expenses and other assets (6,097) (4,316) 1,910
Accounts payable 21,460 8,526 (8,103)
Compensation, benefits and other accrued liabilities 14,699 13,672 17,714
Claims and insurance accruals 11,549 7,225 6,952
Income taxes, net 11,511 (36,758) (12,027)
Other liabilities (653) 18,960 14,105
Net cash provided by operating activities 553,880 391,674 350,666
Cash flows from investing activities:      
Purchase of property and equipment (462,059) (367,680) (295,606)
Proceeds from sale of property and equipment 24,442 21,866 11,235
Net cash used in investing activities (437,617) (345,814) (284,371)
Cash flows from financing activities:      
Principal payments under long-term debt agreements (37,778) (35,715) (38,978)
Net (payments) proceeds on revolving line of credit 12,317 0 (10,000)
Payments for Repurchase of Common Stock (114,117) (5,532) 0
Net cash (used in) provided by financing activities (139,578) (41,247) (48,978)
(Decrease) increase in cash and cash equivalents (23,315) 4,613 17,317
Cash and cash equivalents at beginning of year 34,787 30,174 12,857
Cash and cash equivalents at end of year 11,472 34,787 30,174
Income taxes paid 130,058 176,221 102,448
Interest paid 8,414 9,710 11,585
Capitalized interest $ 2,526 $ 2,884 $ 1,731