| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 |
|---|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | |||||||||||
Net income | |||||||||||
615,518 | 605,668 | 463,774 | 295,765 | 304,690 | 267,514 | 206,113 | 169,452 | 139,470 | 75,651 | 34,871 | 68,677 |
Adjustments to reconcile net income to net cash provided by operating activities: | |||||||||||
Depreciation and amortization | |||||||||||
253,681 | 230,357 | 205,763 | 189,867 | 165,343 | 146,466 | 127,072 | 110,743 | 90,820 | 80,362 | 94,784 | 87,083 |
Noncash lease expense | |||||||||||
11,066 | - | - | - | - | - | - | - | - | - | - | - |
Loss on disposal of property and equipment | |||||||||||
-6,066 | -477 | -1,274 | -168 | -3,592 | -716 | -5,743 | 78 | 1,263 | 758 | -173 | 2,141 |
Deferred income taxes | |||||||||||
13,157 | 57,709 | -82,639 | 34,808 | 43,642 | 25,544 | 32,736 | 17,682 | 43,348 | 7,624 | 10,778 | 5,352 |
Share-based compensation | |||||||||||
16,717 | 4,894 | 3,242 | 1,410 | 0 | 0 | - | - | - | - | - | - |
Changes in assets and liabilities: | |||||||||||
Customer and other receivables, net | |||||||||||
-30,330 | 34,666 | 76,353 | 11,176 | -8,672 | -54,443 | -30,063 | -5,410 | -40,414 | -36,169 | -2,806 | -12,305 |
Prepaid expenses and other assets | |||||||||||
16,807 | 12,003 | 12,885 | 21,227 | -6,097 | -4,316 | 1,910 | -7,956 | -2,952 | -13,314 | 4,713 | -591 |
Accounts payable | |||||||||||
-8,264 | 4,789 | -15,487 | 22,442 | 21,460 | 8,526 | -8,103 | 2,795 | 12,875 | -4,247 | -7,531 | 7,658 |
Compensation, benefits and other accrued liabilities | |||||||||||
3,263 | 47,552 | 25,330 | 4,965 | 14,699 | 13,672 | 17,714 | 13,559 | 17,626 | 22,476 | -10,746 | 6,104 |
Claims and insurance accruals | |||||||||||
5,297 | 8,142 | 1,843 | 6,548 | 11,549 | 7,225 | 6,952 | 7,458 | 6,696 | 3,831 | 3,274 | 8,484 |
Income taxes, net | |||||||||||
32,612 | -17,813 | -4,939 | 21,184 | 11,511 | -36,758 | -12,027 | 9,264 | 3,224 | -3,613 | 2,812 | -680 |
Other liabilities | |||||||||||
21,252 | 5,010 | 27,371 | 20,829 | -653 | 18,960 | 14,105 | 10,391 | 5,978 | 7,163 | 4,208 | 3,043 |
Net cash provided by operating activities | |||||||||||
983,888 | 900,116 | 536,294 | 565,583 | 553,880 | 391,674 | 350,666 | 328,056 | 277,934 | 140,522 | 130,716 | 196,506 |
Cash flows from investing activities: | |||||||||||
Purchase of property and equipment | |||||||||||
479,325 | 588,292 | 382,125 | 417,941 | 462,059 | 367,680 | 295,606 | 373,193 | 250,768 | 106,347 | 210,888 | 181,499 |
Proceeds from sale of property and equipment | |||||||||||
5,686 | 6,983 | 12,240 | 10,541 | 24,442 | 21,866 | 11,235 | 12,018 | 5,436 | 2,604 | 2,303 | 3,483 |
Other investing activities, net | |||||||||||
- | -918 | -2,139 | - | 0 | - | - | - | - | - | - | - |
Purchase of short-term investment securities | |||||||||||
- | - | - | - | - | - | - | - | - | - | - | 42,391 |
Proceeds from sale of short-term investment securities | |||||||||||
- | - | - | - | - | - | - | - | - | - | 4,861 | 61,875 |
Acquisition of business assets | |||||||||||
- | - | - | - | - | - | - | - | - | - | - | 7,267 |
Net cash used in investing activities | |||||||||||
-473,639 | -580,391 | -367,746 | -407,400 | -437,617 | -345,814 | -284,371 | -361,175 | -245,332 | -103,743 | -203,724 | -165,799 |
Cash flows from financing activities: | |||||||||||
Dividends | |||||||||||
- | - | - | - | 0 | - | - | - | - | - | - | - |
Payments for share repurchases | |||||||||||
240,960 | 163,265 | 8,013 | 130,316 | 114,117 | 5,532 | 0 | 0 | - | - | - | - |
Proceeds from issuance of long-term debt | |||||||||||
- | - | - | - | - | - | - | 412 | 96,010 | 0 | 0 | - |
Principal payments under long-term debt agreements | |||||||||||
- | 50,000 | - | 26,488 | 37,778 | 35,715 | 38,978 | 40,284 | 40,382 | 36,681 | 11,972 | 12,931 |
Net payments on revolving line of credit | |||||||||||
- | - | -9,975 | -2,342 | 12,317 | 0 | -10,000 | 10,000 | -66,230 | 1,183 | 65,047 | 0 |
Dividends paid | |||||||||||
54,552 | 42,566 | 32,925 | - | - | - | - | - | - | - | - | - |
Other financing activities, net | |||||||||||
-1,448 | -1,074 | -344 | -338 | 0 | 0 | - | - | - | - | - | - |
Proceeds from stock issuance, net of issuance costs | |||||||||||
- | - | - | - | - | - | - | - | 48,400 | 0 | 0 | - |
Net Change Other Financing Activities | |||||||||||
- | - | - | - | - | - | - | -2 | 0 | -2 | 0 | 0 |
Net cash used in financing activities | |||||||||||
-296,960 | -256,905 | -51,257 | -159,484 | -139,578 | -41,247 | -48,978 | -29,874 | 37,798 | -35,500 | 53,075 | -12,931 |
(Decrease) Increase in cash and cash equivalents | |||||||||||
213,289 | 62,820 | 117,291 | -1,301 | -23,315 | 4,613 | 17,317 | -62,993 | 70,400 | 1,279 | -19,933 | 17,776 |
Income taxes paid | |||||||||||
157,290 | 170,035 | 199,404 | 123,395 | 130,058 | 176,221 | 102,448 | 74,932 | 34,579 | 44,893 | 9,027 | 39,660 |
Interest paid | |||||||||||
3,857 | 4,525 | 5,442 | 6,417 | 8,414 | 9,710 | 11,585 | 13,728 | 14,011 | 13,561 | 14,708 | 14,921 |
Capitalized interest | |||||||||||
3,128 | 3,237 | 3,309 | 2,262 | 2,526 | 2,884 | 1,731 | 1,963 | 895 | 682 | 1,654 | 955 |
Supplemental disclosure of noncash investing activities: | |||||||||||
Acquisition of property and equipment by capital lease | |||||||||||
- | - | - | - | - | - | - | - | - | 1,183 | 468 | 1,166 |
Fair value of property exchanged | |||||||||||
- | - | - | - | - | - | - | - | - | - | 1,277 | 7,823 |