| 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 | ||||||||||||||||||||
110,836 | 114,370 | 117,823 | 117,809 | 121,013 | 120,977 | 118,323 | 116,081 | 113,186 | 110,757 | 107,951 | 102,798 | 97,453 | 92,617 | 90,368 | 86,755 | 83,692 | 80,692 | 0 | 0 | 0 |
Adjustments to reconcile net income to net cash provided by operating activities: | ||||||||||||||||||||
Depreciation and amortization | ||||||||||||||||||||
149,811 | 143,931 | 135,860 | 129,162 | 125,437 | 121,843 | 121,905 | 121,345 | 120,189 | 117,887 | 110,415 | 106,377 | 102,179 | 98,843 | 96,573 | 94,616 | 93,172 | 92,313 | 0 | 0 | 0 |
Deferred income taxes | ||||||||||||||||||||
-217 | -742 | -1,368 | 1,467 | 1,085 | 5,853 | 466 | -1,594 | -4,116 | -3,338 | -1,042 | 5,380 | 10,176 | 5,557 | 9,474 | 9,123 | 8,729 | 6,162 | 0 | 0 | 0 |
Gain on disposal of property and equipment, net | ||||||||||||||||||||
351 | 663 | 212 | -8 | -63 | -251 | 245 | -291 | -860 | -1,086 | -2,323 | -1,968 | -1,640 | -1,779 | -1,709 | -1,799 | -2,034 | -2,001 | 0 | 0 | 0 |
Amortization of deferred financing costs | ||||||||||||||||||||
3,367 | 3,285 | 2,480 | 2,342 | 2,269 | 2,197 | 2,134 | 2,097 | 2,005 | 2,003 | 1,989 | 1,978 | 2,185 | 2,269 | 2,466 | 2,566 | 2,444 | 2,706 | 0 | 0 | 0 |
Share-based compensation | ||||||||||||||||||||
12,749 | 12,903 | 12,938 | 12,960 | 12,925 | 12,469 | 13,234 | 13,660 | 13,638 | 14,686 | 20,716 | 20,671 | 20,337 | 19,767 | 17,336 | 15,682 | 14,368 | 12,835 | 0 | 0 | 0 |
Excess tax benefit related to share-based compensation | ||||||||||||||||||||
1,618 | 1,318 | 393 | 2,248 | 2,084 | 5,895 | 5,939 | 4,701 | 5,041 | 8,502 | 9,771 | 9,137 | 9,581 | 3,537 | 0 | 0 | 0 | - | - | - | - |
Changes in operating assets and liabilities | ||||||||||||||||||||
6,166 | 7,448 | 4,883 | -6,683 | 7 | -1,901 | 5,560 | 7,581 | -18,999 | -22,143 | -20,673 | -21,164 | -16,870 | -10,277 | -9,896 | -4,206 | 249 | 1,207 | 0 | 0 | 0 |
Other | ||||||||||||||||||||
-2,535 | -3,589 | -4,178 | 545 | 521 | -93 | 141 | -581 | -639 | 31 | 424 | 423 | 464 | 371 | -722 | -631 | -623 | -257 | 0 | 0 | 0 |
Net cash provided by operating activities | ||||||||||||||||||||
265,859 | 260,712 | 257,976 | 268,637 | 261,148 | 259,429 | 244,459 | 238,821 | 258,885 | 256,557 | 253,482 | 251,622 | 241,723 | 227,943 | 223,440 | 210,068 | 198,513 | 192,265 | 0 | 0 | 0 |
Cash flows from investing activities: | ||||||||||||||||||||
Purchases of property and equipment | ||||||||||||||||||||
431,409 | 432,259 | 462,771 | 464,926 | 372,629 | 348,948 | 284,180 | 255,525 | 244,862 | 224,194 | 207,742 | 188,414 | 165,449 | 165,335 | 167,688 | 166,530 | 146,995 | 131,671 | 0 | 0 | 0 |
Acquisitions, net of cash acquired | ||||||||||||||||||||
3,609 | 16,009 | 12,536 | 25,201 | 25,638 | 13,238 | 14,732 | 4,636 | 24,036 | 30,614 | 91,955 | 89,498 | 75,597 | 70,264 | 0 | 0 | 0 | - | - | - | - |
Proceeds from sale of property and equipment | ||||||||||||||||||||
1,172 | 1,389 | 1,475 | 1,373 | 1,337 | 1,445 | 1,412 | 1,370 | 1,161 | 969 | 733 | 703 | 819 | 794 | 864 | 584 | 1,169 | 851 | 0 | 0 | 0 |
Proceeds from property insurance settlements | ||||||||||||||||||||
- | - | - | - | - | 177 | 185 | 294 | 360 | 909 | 1,271 | 1,254 | 1,134 | 464 | 0 | 0 | 0 | - | - | - | - |
Increase in other assets | ||||||||||||||||||||
812 | 1,564 | 1,741 | 1,882 | -490 | -1,187 | -1,261 | -819 | -891 | -333 | -169 | -231 | -242 | -92 | -2,382 | -1,631 | -3,202 | -2,943 | 0 | 0 | 0 |
Increase in restricted cash | ||||||||||||||||||||
-322 | -337 | 156 | 141 | -1,225 | -1,237 | -1,079 | -1,091 | -4 | -102 | -112 | -124 | -1,354 | -1,484 | -1,228 | -1,419 | 185 | -369 | 0 | 0 | 0 |
Net cash used in investing activities | ||||||||||||||||||||
-431,927 | -444,193 | -470,784 | -485,548 | -395,461 | -359,836 | -297,497 | -256,467 | -266,506 | -251,403 | -295,992 | -276,062 | -237,981 | -232,949 | -177,458 | -179,565 | -165,624 | -149,034 | 0 | 0 | 0 |
Cash flows from financing activities: | ||||||||||||||||||||
Proceeds from long-term borrowings | ||||||||||||||||||||
81,750 | 161,750 | 161,750 | 133,750 | 130,000 | 125,000 | 125,000 | 75,000 | 75,000 | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Repayments of long-term borrowings | ||||||||||||||||||||
34,678 | 32,993 | 29,695 | 17,776 | 38,489 | 35,276 | 33,608 | 31,680 | 7,184 | 6,929 | 6,503 | 9,109 | 78,449 | 79,192 | 80,110 | 78,846 | 9,912 | 40,394 | 0 | 0 | 0 |
Proceeds from credit facility, net | ||||||||||||||||||||
229,700 | 224,500 | 255,150 | 273,400 | 140,200 | 56,500 | 30,850 | 18,500 | -21,800 | 22,000 | 34,000 | 26,200 | 65,400 | 77,800 | 11,400 | 32,599 | -33,900 | -3,900 | 0 | 0 | 0 |
Repayments of financing lease obligation | ||||||||||||||||||||
0 | - | - | - | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Increase in deferred financing costs | ||||||||||||||||||||
4,021 | 4,968 | 5,102 | 8,125 | 5,113 | 4,631 | 4,821 | 1,634 | 1,369 | 914 | 900 | 903 | 4,999 | 4,989 | 4,636 | 4,583 | 541 | 499 | 0 | 0 | 0 |
Excess tax benefit related to share-based compensation | ||||||||||||||||||||
1,618 | 1,318 | 393 | 2,248 | 2,084 | 5,895 | 5,939 | 4,701 | 5,041 | 8,502 | 9,771 | 9,137 | 9,581 | 3,537 | 0 | 0 | 0 | - | - | - | - |
Proceeds from stock option exercises | ||||||||||||||||||||
1,872 | 2,908 | 2,884 | 3,288 | 3,001 | 1,734 | 1,817 | 1,468 | 1,242 | 2,342 | 3,770 | 4,099 | 4,360 | 3,162 | 2,962 | 3,235 | 5,545 | 5,142 | 0 | 0 | 0 |
Proceeds from employee stock purchase plan | ||||||||||||||||||||
1,657 | 1,593 | 1,571 | 1,535 | 1,436 | 1,367 | 1,281 | 1,223 | 1,232 | 1,206 | 1,186 | 1,134 | 1,113 | 1,061 | 0 | 0 | 0 | - | - | - | - |
Stock purchased for employee stock purchase plan | ||||||||||||||||||||
1,675 | 1,531 | 1,531 | 1,441 | 1,441 | 1,309 | 1,309 | 1,210 | 1,210 | 1,290 | 1,290 | 1,215 | 1,215 | 1,113 | 0 | 0 | 0 | - | - | - | - |
Repurchases of common stock | ||||||||||||||||||||
106,380 | 166,878 | 188,565 | 173,796 | 103,108 | 61,959 | 59,371 | 47,256 | 38,448 | 19,099 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Net cash provided by financing activities | ||||||||||||||||||||
168,553 | 184,467 | 195,843 | 212,071 | 127,268 | 86,309 | 64,966 | 18,300 | 11,692 | 5,006 | 40,034 | 29,343 | -4,209 | 266 | -67,051 | -44,192 | -34,580 | -37,286 | 0 | 0 | 0 |
Effect of exchange rates on cash and cash equivalents | ||||||||||||||||||||
-127 | -145 | 6,868 | 7,564 | 5,891 | 5,933 | -834 | -3,027 | -1,174 | -1,148 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Increase in cash and cash equivalents | ||||||||||||||||||||
2,358 | 841 | -10,097 | 2,724 | -1,154 | -8,165 | 11,094 | -2,373 | 2,897 | 9,012 | -3,808 | 5,178 | -467 | -4,740 | -21,069 | -13,689 | -1,691 | 5,945 | 0 | 0 | 0 |