| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 | Sep'17 | Jun'17 | Mar'17 | Dec'16 | Sep'16 | Jun'16 | Mar'16 | Dec'15 | Sep'15 | Jun'15 | Mar'15 | Dec'14 | Sep'14 | Jun'14 | Mar'14 | Dec'13 | Sep'13 | Jun'13 | Mar'13 | Dec'12 | Sep'12 | Jun'12 | Mar'12 | Dec'11 | Sep'11 | Jun'11 | Mar'11 | Dec'10 | Sep'10 | Jun'10 | Mar'10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||||||||||||||||||||||||||||||||||||
Net income | ||||||||||||||||||||||||||||||||||||||||
23,058 | 48,496 | 39,044 | 43,318 | 36,086 | 54,563 | 47,514 | 38,264 | 27,807 | 141,134 | 22,517 | 23,219 | 16,019 | 21,811 | 18,920 | 18,306 | 20,092 | 36,648 | 32,076 | 31,848 | 23,142 | 32,709 | 25,970 | 25,632 | 14,339 | 22,175 | 21,259 | 25,840 | 17,511 | 25,981 | 25,128 | 30,680 | 21,245 | 29,368 | 29,578 | 27,518 | 16,293 | 24,115 | 24,158 | 20,930 | 10,836 |
Adjustments to reconcile net income to net cash provided by operating activities: | ||||||||||||||||||||||||||||||||||||||||
Depreciation | ||||||||||||||||||||||||||||||||||||||||
68,837 | 64,711 | 62,620 | 61,437 | 60,759 | 59,712 | 58,382 | 56,551 | 55,506 | 55,020 | 53,578 | 53,705 | 55,336 | 56,879 | 51,781 | 50,904 | 50,164 | 50,144 | 49,081 | 48,264 | 45,720 | 45,106 | 44,182 | 44,573 | 43,123 | 45,709 | 42,612 | 42,367 | 42,331 | 42,879 | 41,901 | 41,506 | 40,671 | 39,473 | 40,197 | 39,246 | 39,718 | 39,394 | 37,092 | 37,471 | 38,285 |
Deferred income taxes | ||||||||||||||||||||||||||||||||||||||||
-2,912 | 7,988 | 7,325 | 663 | 425 | 12,580 | 8,845 | 10,791 | 5,478 | -107,440 | 240 | 2,819 | 3,433 | 20,859 | 152 | 17,211 | 6,410 | 41,859 | -320 | -811 | -2,286 | 21,244 | -5,453 | -4,459 | -6,294 | 29 | -3,960 | 725 | -5,183 | -1,148 | -2,332 | -2,874 | -2,714 | 22,694 | 12,448 | 11,962 | 10,759 | -7,511 | 12,866 | -7,811 | -9,465 |
Gain on disposal of property and equipment | ||||||||||||||||||||||||||||||||||||||||
2,469 | 7,027 | 4,147 | 4,454 | 5,929 | 8,976 | 4,576 | 8,638 | 2,708 | 767 | 2,177 | 2,462 | 1,392 | 3,182 | 3,103 | 6,782 | 3,365 | 4,360 | 6,689 | 6,687 | 5,504 | 4,993 | 4,452 | 5,168 | 4,647 | 3,707 | 2,655 | 6,513 | 3,533 | 4,735 | 5,352 | 5,699 | 4,747 | 4,836 | 6,032 | 5,647 | 4,775 | 2,821 | 1,437 | 538 | 1,111 |
Non-cash equity compensation | ||||||||||||||||||||||||||||||||||||||||
2,406 | 1,731 | 1,981 | 2,314 | 2,051 | 1,887 | 2,118 | 1,979 | 1,410 | 1,331 | 1,184 | 1,135 | 896 | 56 | 1,314 | 1,326 | -315 | 754 | -148 | 1,985 | 1,770 | 1,720 | 1,513 | 1,533 | 1,304 | 980 | 1,239 | 1,289 | 1,301 | 1,228 | 1,141 | 1,111 | 1,122 | 722 | 730 | 538 | 609 | 497 | 457 | 23 | 484 |
Insurance and claims accruals, net of current portion | ||||||||||||||||||||||||||||||||||||||||
-5,973 | 1,652 | -3,873 | -6,027 | -5,940 | -5,470 | -7,019 | -13,791 | -290 | -1,040 | 3,380 | 350 | 2,915 | 250 | 2,600 | 4,220 | 4,250 | 4,700 | 650 | -1,700 | -5,400 | 7,380 | 1,425 | -1,550 | 1,200 | -3,700 | -800 | 550 | -2,450 | -4,300 | -250 | 1,800 | -1,500 | -1,000 | -2,500 | -2,500 | -2,000 | 4,500 | -1,250 | -2,000 | -1,000 |
Other | ||||||||||||||||||||||||||||||||||||||||
88 | 1,167 | -1,162 | -617 | -2,748 | 307 | -2,286 | -1,016 | -1,779 | -3,202 | -549 | -4,309 | -3,897 | 5,130 | -3,288 | -206 | -5,006 | 3,815 | 3,102 | 2,376 | -190 | 4,588 | -3,061 | -623 | 203 | 698 | -1,270 | 244 | -213 | -1,603 | 1,815 | 940 | -1,389 | -229 | -700 | -622 | 478 | -947 | 525 | 1,178 | -164 |
Changes in certain working capital items: | ||||||||||||||||||||||||||||||||||||||||
Accounts receivable, net | ||||||||||||||||||||||||||||||||||||||||
-11,946 | -529 | -7,864 | 17,715 | -24,403 | 13,016 | -8,223 | 31,167 | -2,207 | 24,458 | 29,314 | 3,367 | -14,337 | 8,860 | 13,404 | 3,345 | -15,260 | 145 | -7,945 | 12,470 | -20,374 | 2,321 | 3,101 | 17,011 | 12,647 | -5,211 | 12,868 | 4,980 | 7,877 | -6,625 | -1,877 | 6,434 | -5,511 | 5,207 | 255 | 2,685 | 20,301 | -11,221 | 9,680 | 7,703 | 3,362 |
Other current assets | ||||||||||||||||||||||||||||||||||||||||
-12,195 | 4,692 | 1,361 | -812 | -6,216 | 444 | 13,326 | 1,529 | -5,320 | 1,294 | 2,742 | -12,940 | -11,269 | -13,892 | 17,358 | 6,295 | -12,006 | 20,091 | -962 | -9,223 | -19,361 | 27,518 | 505 | -4,747 | 2,650 | -2,830 | -4,222 | 8,810 | -5,156 | 3,774 | 4,714 | -9,262 | -16,807 | 21,743 | 747 | 920 | -1,666 | -3,579 | 17,265 | -10,943 | -1,525 |
Accounts payable | ||||||||||||||||||||||||||||||||||||||||
354 | -7,005 | -6,086 | 1,912 | 3,642 | -4,183 | 997 | 6,923 | 3,822 | -1,276 | 5,348 | 3,628 | -1,869 | -7,170 | -1,729 | 2,814 | 813 | -2,907 | -6,091 | 7,034 | 9,220 | -25,853 | 13,118 | 2,833 | 8,405 | -11,106 | 4,734 | 2,754 | 6,411 | -9,937 | -1,387 | -7,037 | -1,811 | 12,652 | 1,134 | 640 | 4,955 | 2,281 | 2,833 | 552 | 5,173 |
Other current liabilities | ||||||||||||||||||||||||||||||||||||||||
13,900 | -9,787 | 1,898 | -12,130 | 7,924 | 7,746 | 7,152 | -3,360 | 2,509 | -491 | 33 | 5,607 | -5,289 | 9,323 | -532 | 9,990 | -490 | -13,397 | 9,932 | -9,876 | 3,979 | 4,052 | 7,880 | -22,271 | 19,273 | -5,153 | 6,070 | -18,064 | 18,252 | -3,435 | 1,590 | -4,856 | 7,804 | -9,753 | 4,456 | -9,300 | 2,398 | 7,928 | -6,968 | -10,591 | 21,761 |
Net cash provided by operating activities | ||||||||||||||||||||||||||||||||||||||||
133,376 | 94,459 | 111,849 | 81,567 | 138,769 | 115,646 | 120,062 | 82,589 | 99,862 | 59,597 | 44,738 | 92,565 | 85,928 | 108,488 | 30,153 | 79,703 | 91,319 | 87,620 | 89,200 | 72,586 | 120,986 | 41,354 | 74,666 | 31,336 | 59,209 | 61,366 | 60,183 | 34,302 | 76,606 | 56,381 | 59,917 | 54,799 | 83,999 | 64,141 | 83,309 | 63,230 | 53,800 | 73,236 | 43,831 | 46,454 | 64,962 |
Cash flows from investing activities: | ||||||||||||||||||||||||||||||||||||||||
Additions to property and equipment | ||||||||||||||||||||||||||||||||||||||||
57,231 | 45,546 | 135,913 | 118,932 | 120,357 | 107,315 | 156,355 | 161,965 | 94,237 | 110,469 | 79,823 | 83,392 | 42,659 | 149,452 | 75,306 | 189,656 | 123,424 | 116,622 | 121,288 | 107,452 | 108,735 | 90,295 | 106,385 | 69,105 | 30,864 | 61,440 | 85,024 | 32,946 | 31,919 | 58,443 | 74,070 | 56,475 | 95,954 | 93,871 | 67,703 | 103,151 | 37,615 | 56,397 | 37,288 | 65,716 | 16,656 |
Proceeds from sales of property and equipment | ||||||||||||||||||||||||||||||||||||||||
38,391 | 33,330 | 26,607 | 39,943 | 36,993 | 47,633 | 41,900 | 42,636 | 38,731 | 32,729 | 24,693 | 32,011 | 28,065 | 13,859 | 41,818 | 30,733 | 21,821 | 16,248 | 29,585 | 32,911 | 23,870 | 24,840 | 22,353 | 22,344 | 14,818 | 15,992 | 13,085 | 19,723 | 10,613 | 13,763 | 15,749 | 17,098 | 13,405 | 15,273 | 20,043 | 17,265 | 17,561 | 20,461 | 6,506 | 24,275 | 5,782 |
Decrease in notes receivable | ||||||||||||||||||||||||||||||||||||||||
2,316 | 2,319 | 2,742 | 3,079 | 3,426 | 5,052 | 4,119 | 5,783 | 5,944 | 4,400 | 4,147 | 4,284 | 7,206 | 5,346 | 5,710 | 4,903 | 3,394 | 7,561 | 4,768 | 3,411 | 3,777 | 3,255 | 3,059 | 5,310 | 2,766 | 3,584 | 2,656 | 2,242 | 2,197 | 4,008 | 1,743 | 1,748 | 623 | 3,136 | 1,390 | 1,557 | 1,271 | 1,400 | 1,069 | 1,004 | 1,226 |
Net cash used in investing activities | ||||||||||||||||||||||||||||||||||||||||
-16,524 | -9,897 | -106,564 | -75,910 | -79,938 | -54,630 | -110,336 | -116,846 | -49,562 | -73,340 | -55,983 | -47,097 | -7,388 | -130,247 | -27,778 | -154,020 | -98,209 | -96,393 | -86,935 | -71,130 | -81,088 | -64,440 | -80,973 | -44,794 | -13,280 | -41,864 | -68,304 | -10,981 | -19,109 | -40,672 | -56,578 | -37,629 | -81,926 | -75,462 | -46,270 | -84,329 | -18,783 | -34,536 | -29,713 | -40,437 | -9,648 |
Cash flows from financing activities: | ||||||||||||||||||||||||||||||||||||||||
Repayments of short-term debt | ||||||||||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 25,000 | 20,000 | 0 | 20,000 | 0 | 0 | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 20,000 | 20,000 | 20,000 | 40,000 | 80,000 | 30,000 | 0 | 0 | 20,000 | 40,000 | 0 | 0 | 10,000 |
Proceeds from issuance of short-term debt | ||||||||||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 40,000 | 20,000 | 40,000 | 80,000 | 30,000 | 0 | 0 | 20,000 | 40,000 | 0 | 0 | 10,000 |
Repayments of long-term debt | ||||||||||||||||||||||||||||||||||||||||
50,000 | - | - | - | 0 | - | - | - | - | 0 | 0 | 30,000 | 30,000 | 0 | 40,000 | 0 | 0 | - | - | - | - | - | - | - | - | 10,000 | 0 | 0 | 30,000 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Change in net checks issued in excess of cash balances | ||||||||||||||||||||||||||||||||||||||||
- | - | - | - | - | -3,299 | -10,398 | 13,697 | -21,539 | 18,001 | 3,538 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | -7,407 | 736 | 6,671 | 0 | 0 | 0 | - | - | - | - |
Dividends on common stock | ||||||||||||||||||||||||||||||||||||||||
6,232 | 6,228 | 6,228 | 267,394 | 6,340 | 6,408 | 6,465 | 5,072 | 5,068 | 5,063 | 5,058 | 4,333 | 4,330 | 4,323 | 4,323 | 4,323 | 4,320 | 4,314 | 3,594 | 3,605 | 3,602 | 3,587 | 3,598 | 3,619 | 3,636 | 3,626 | 3,635 | 3,664 | 3,662 | 113,462 | 3,644 | 3,643 | 3,642 | 40,058 | 3,640 | 3,639 | 3,632 | 119,860 | 3,618 | 3,603 | 3,595 |
Repurchases of common stock | ||||||||||||||||||||||||||||||||||||||||
8,798 | 0 | 0 | 21,756 | 20,545 | 25,752 | 23,529 | 22,884 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 4,985 | 12,722 | 12,880 | 0 | 4,995 | 15,065 | 0 | - | - | - | - | - | - | - | - | - | - | - | - |
Tax withholding related to net share settlements of restricted stock awards | ||||||||||||||||||||||||||||||||||||||||
3,930 | 708 | 2 | 10 | 1,179 | 692 | 0 | 12 | 667 | 1,187 | 85 | 19 | 341 | 1,209 | 64 | 19 | 540 | 1,263 | 68 | 25 | 368 | 1,881 | 65 | 31 | 0 | 1,244 | 394 | 9 | 157 | 528 | 146 | 0 | 0 | - | - | - | - | - | - | - | - |
Stock options exercised | ||||||||||||||||||||||||||||||||||||||||
- | - | - | - | - | 0 | 228 | 19 | 229 | 122 | 1,351 | 464 | 524 | 72 | 113 | 86 | 99 | 0 | 83 | 60 | 703 | 2,843 | 19 | 1,017 | 3,133 | 1,579 | 236 | 513 | 220 | 5,656 | 0 | 204 | 175 | 314 | 241 | 483 | 1,902 | 295 | 2,924 | 2,813 | 1,948 |
Excess tax benefits from equity compensation | ||||||||||||||||||||||||||||||||||||||||
- | - | - | - | - | - | - | - | - | - | - | - | - | 255 | -1 | 3 | -19 | 337 | 20 | 13 | 186 | 1,029 | 11 | 66 | 218 | 326 | 29 | 20 | 4 | 128 | 0 | 12 | 10 | 6 | 128 | 154 | 317 | 23 | 1,375 | 1,412 | 612 |
Net cash used in financing activities | ||||||||||||||||||||||||||||||||||||||||
-68,960 | -65,838 | -37,157 | -24,160 | -28,064 | -36,151 | -10,164 | 5,748 | -27,045 | 11,873 | -254 | -58,888 | -54,147 | 22,130 | -3,551 | 69,571 | -4,780 | -5,240 | -3,559 | -13,112 | -3,081 | -1,596 | 26,382 | -15,289 | -13,165 | -12,965 | 1,241 | -18,205 | -53,595 | -18,206 | -3,790 | -10,834 | -2,721 | -33,067 | -3,271 | -3,002 | -1,413 | -119,542 | 681 | 622 | -1,035 |
Effect of exchange rate fluctuations on cash | ||||||||||||||||||||||||||||||||||||||||
-2,073 | 364 | -194 | 181 | 45 | -585 | 164 | -356 | 403 | -530 | -127 | 277 | 430 | 121 | -325 | -427 | 247 | -75 | -276 | -116 | -158 | -312 | -191 | -7 | 26 | -209 | -18 | -397 | 199 | -112 | 304 | -224 | 308 | -85 | -366 | -15 | 29 | -40 | 856 | -505 | 350 |
Net increase in cash, cash equivalents and restricted cash | ||||||||||||||||||||||||||||||||||||||||
45,819 | 19,088 | -32,066 | -18,322 | 30,812 | 24,280 | -274 | -28,865 | 23,658 | -2,400 | -11,626 | -13,143 | 24,823 | 492 | -1,501 | -5,173 | -11,423 | -14,088 | -1,570 | -11,772 | 36,659 | -24,994 | 19,884 | -28,754 | 32,790 | 6,328 | -6,898 | 4,719 | 4,101 | -2,609 | -147 | 6,112 | -340 | -44,473 | 33,402 | -24,116 | 33,633 | -80,882 | 15,655 | 6,134 | 54,629 |
Supplemental disclosures of cash flow information: | ||||||||||||||||||||||||||||||||||||||||
Interest paid | ||||||||||||||||||||||||||||||||||||||||
1,811 | 2,080 | 2,531 | 966 | 864 | 991 | 727 | 491 | 481 | 487 | 492 | 636 | 876 | 632 | 766 | 578 | 494 | 400 | 512 | 584 | 482 | 516 | 71 | 128 | 105 | 105 | 99 | 94 | 168 | 20 | 18 | 66 | 141 | 42 | 5 | 10 | 28 | 30 | 5 | 3 | 9 |
Income taxes paid | ||||||||||||||||||||||||||||||||||||||||
611 | 8,561 | 4,233 | 36,249 | 556 | 5,023 | 869 | 5,162 | 301 | 6,269 | 11,351 | 4,090 | 378 | 416 | 19 | 3,150 | 1,088 | 1,004 | 16,339 | 16,395 | 1,467 | 17,779 | 16,489 | 41,237 | 1,344 | 11,609 | 13,658 | 36,985 | 3,780 | 18,644 | 23,132 | 25,099 | 1,093 | 4,938 | 3,523 | 14,600 | 5,741 | 5,028 | 20,112 | 29,770 | 1,140 |
Supplemental schedule of non-cash investing and financing activities: | ||||||||||||||||||||||||||||||||||||||||
Notes receivable issued upon sale of property and equipment | ||||||||||||||||||||||||||||||||||||||||
1,099 | 1,222 | 1,810 | 1,640 | 2,092 | 5,086 | 4,238 | 1,638 | 2,178 | 1,758 | 1,459 | 1,727 | 872 | 2,497 | 4,209 | 4,692 | 14,051 | 14,268 | 9,243 | 6,632 | 5,917 | 4,958 | 3,094 | 2,881 | 3,452 | 4,409 | 5,463 | 3,749 | 3,489 | 3,278 | 2,693 | 3,076 | 1,517 | 3,119 | 3,888 | 1,137 | 1,028 | 1,100 | 1,092 | 1,601 | 814 |
Change in fair value of interest rate swaps | ||||||||||||||||||||||||||||||||||||||||
-5,597 | 1,000 | -1,440 | -106 | -105 | -122 | 5 | 94 | 278 | 265 | 100 | 20 | 214 | 854 | 388 | -170 | -735 | 610 | -605 | 324 | -87 | -749 | -431 | 0 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Property and equipment acquired included in accounts payable | ||||||||||||||||||||||||||||||||||||||||
13,848 | 12,291 | 2,721 | -8,924 | 15,050 | 11,951 | -2,900 | 1,698 | 5,999 | 2,735 | -3,722 | 3,543 | 671 | 1,053 | -11,083 | 4,664 | 7,240 | -9,886 | 1,546 | 8,382 | 585 | 1,607 | -8,947 | 8,900 | 507 | 2,707 | -1,190 | 3,861 | 25 | -7,882 | -1,550 | -3,724 | 13,265 | 13,003 | 651 | 887 | 2,485 | - | - | - | - |
Property and equipment disposed included in other receivables | ||||||||||||||||||||||||||||||||||||||||
1,251 | 17,114 | 1,486 | -72 | 72 | -333 | 742 | 198 | 67 | -646 | 1,197 | 92 | 11 | -104 | -347 | 130 | 476 | 21 | 0 | -68 | 68 | -351 | -345 | 227 | 469 | -262 | -408 | 88 | 1,016 | -100 | -176 | 244 | 343 | -1,290 | -2,988 | 3,858 | 678 | - | - | - | - |