v3.24.0.1
Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Cash flows from operating activities:      
Net income $ 1,239,502 $ 1,377,159 $ 1,034,375
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 324,449 276,066 259,899
Noncash lease expense 18,665 16,658 14,890
Gain on disposal of property and equipment (22,555) (3,425) (563)
Deferred income taxes 53,341 62,008 30,165
Share-based compensation 11,080 15,893 15,039
Changes in assets and liabilities:      
Customer and other receivables, net (3,875) (13,009) (125,562)
Prepaid expenses and other assets (38,189) (24,714) (38,387)
Accounts payable 6,499 23,756 14,008
Compensation, benefits and other accrued liabilities (1,422) (11,202) 32,437
Claims and insurance accruals (2,249) 5,464 10,963
Income taxes, net (5,816) 6,480 (27,929)
Other liabilities (10,295) (39,552) (6,729)
Net cash provided by operating activities 1,569,135 1,691,582 1,212,606
Cash flows from investing activities:      
Purchase of property and equipment (757,309) (775,148) (550,077)
Proceeds from sale of property and equipment 48,637 22,096 19,548
Purchase of short-term investments   (163,720) (359,389)
Proceeds from maturities of short-term investments 48,852 369,300 435,130
Other investing activities, net     (500)
Net cash used in investing activities (659,820) (547,472) (455,288)
Cash flows from financing activities:      
Payments for share repurchases (453,613) (1,277,219) (536,465)
Forward contract for accelerated share repurchases     (62,500)
Dividends paid (175,089) (134,484) (92,366)
Principal payments under debt agreements (20,000)    
Other financing activities, net (13,126) (8,659) (4,853)
Net cash used in financing activities (661,828) (1,420,362) (696,184)
Increase (decrease) in cash and cash equivalents 247,487 (276,252) 61,134
Cash and cash equivalents at beginning of year 186,312 462,564 401,430
Cash and cash equivalents at end of year 433,799 186,312 462,564
Income taxes paid 361,448 396,510 352,826
Interest paid 3,484 3,953 4,232
Capitalized interest $ 3,364 $ 3,260 2,655
Supplemental disclosure of noncash investing and financing activities:      
Noncash purchases of property     $ 16,034

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