v3.10.0.1
Condensed Statements Of Cash Flows - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Statement of Cash Flows [Abstract]    
Net income $ 446,209 $ 266,524
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 167,802 152,670
Loss (gain) on sale of property and equipment (72) 705
Share-based compensation 3,559 2,416
Provision for deferred income taxes 37,571 1,815
Other operating activities, net 20,349 (36,117)
Net cash provided by operating activities 675,418 388,013
Cash flows from investing activities:    
Purchase of property and equipment (469,866) (288,840)
Proceeds from sale of property and equipment 3,329 9,637
Other investing, net 799 2,139
Net cash used in investing activities (465,738) (277,064)
Cash flows from financing activities:    
Principal payments under long-term debt agreements (50,000) 0
Net payments on revolving line of credit 0 (9,975)
Payments for share repurchases (76,589) (8,013)
Dividends paid (32,011) (24,697)
Other financing activities, net (1,074) (344)
Net cash provided by (used in) financing activities (159,674) (43,029)
(Decrease) increase in cash and cash equivalents 50,006 67,920
Cash and cash equivalents at beginning of period 127,462 10,171
Cash and cash equivalents at end of period $ 177,468 $ 78,091

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