| Dec'19 | Dec'18 | Dec'17 | Jan'17 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 |
|---|---|---|---|---|---|---|---|---|---|---|---|
Revenue from services | |||||||||||
2,368,779 | 2,499,207 | 2,508,771 | 2,750,640 | 2,695,680 | 2,174,045 | 1,668,929 | 1,389,530 | 1,316,013 | 1,149,367 | 1,018,418 | 1,384,269 |
Cost of services | |||||||||||
1,742,621 | 1,833,607 | 1,874,298 | 2,070,922 | 2,060,007 | 1,637,066 | 1,226,626 | 1,017,145 | 968,967 | 845,916 | 727,372 | 971,757 |
Gross profit | |||||||||||
626,158 | 665,600 | 634,473 | 679,718 | 635,673 | 536,979 | 442,303 | 372,385 | 347,046 | 303,451 | 291,046 | 412,512 |
Selling, general and administrative expense | |||||||||||
522,430 | 550,632 | 510,794 | 546,477 | 495,988 | 425,777 | 362,248 | 300,459 | 282,828 | 258,722 | 262,182 | 332,113 |
Depreciation and amortization | |||||||||||
37,549 | 41,049 | 46,115 | 46,692 | 41,843 | 29,474 | 20,472 | 18,890 | 16,384 | 16,468 | 17,030 | 16,774 |
Goodwill and intangible asset impairment charge | |||||||||||
- | - | - | 103,544 | 0 | 0 | - | - | - | - | - | 61,000 |
Income (loss) from operations | |||||||||||
66,179 | 73,919 | 77,564 | -16,995 | 97,842 | 81,728 | 59,583 | 53,036 | 47,834 | 28,261 | 11,834 | 2,625 |
Interest expense | |||||||||||
2,783 | 4,881 | 5,494 | 7,166 | 4,160 | 3,156 | 1,248 | 1,131 | 1,207 | 1,515 | 1,491 | 803 |
Interest and other income | |||||||||||
6,648 | 6,625 | 5,480 | 3,821 | 2,765 | 3,272 | 2,602 | 2,700 | 2,697 | 2,416 | 3,798 | 6,333 |
Interest and other income (expense), net | |||||||||||
3,865 | 1,744 | -14 | -3,345 | -1,395 | 116 | 1,354 | 1,569 | 1,490 | 901 | 2,307 | 5,530 |
Income (loss) before tax expense (benefit) | |||||||||||
70,044 | 75,663 | 77,550 | -20,340 | 96,447 | 81,844 | 60,937 | 54,605 | 49,324 | 29,162 | 14,141 | 8,155 |
Income tax expense (benefit) | |||||||||||
6,971 | 9,909 | 22,094 | -5,089 | 25,200 | 16,169 | 16,013 | 20,976 | 18,533 | 9,323 | 5,344 | 12,314 |
Net income (loss) | |||||||||||
63,073 | 65,754 | 55,456 | -15,251 | 71,247 | 65,675 | 44,924 | 33,629 | 30,791 | 19,839 | 8,797 | -4,159 |
Earnings Per Share [Abstract] | |||||||||||
Basic (in dollars per share) | |||||||||||
1.63 | 1.64 | 1.35 | -0.37 | 1.73 | 1.61 | 1.12 | 0.85 | 0.73 | 0.46 | 0.21 | -0.10 |
Diluted (in dollars per share) | |||||||||||
1.61 | 1.63 | 1.34 | -0.37 | 1.71 | 1.59 | 1.11 | 0.84 | 0.73 | 0.46 | 0.20 | -0.10 |
Weighted average shares outstanding: | |||||||||||
Basic (in shares) | |||||||||||
38,778 | 39,985 | 41,202 | 41,648 | 41,226 | 40,734 | 40,166 | 39,548 | 41,961 | 43,224 | 42,842 | 42,885 |
Diluted (in shares) | |||||||||||
39,179 | 40,275 | 41,441 | 41,648 | 41,622 | 41,176 | 40,502 | 39,862 | 42,322 | 43,540 | 43,014 | 42,885 |
Other Comprehensive Income (Loss): | |||||||||||
Unrealized gain on investments, net of tax | |||||||||||
0 | 0 | 1,274 | - | - | - | -96 | 0 | 0 | - | - | - |
Total other comprehensive income (loss), net of tax | |||||||||||
1,411 | -6,320 | 4,629 | 2,580 | -14,884 | -1,162 | -785 | 175 | -263 | - | - | - |
Comprehensive income (loss) | |||||||||||
64,484 | 59,434 | 60,085 | -12,671 | 56,363 | 64,513 | 44,139 | 33,804 | 30,528 | 20,470 | - | - |
Accumulated other comprehensive loss | |||||||||||
Foreign currency translation adjustment | |||||||||||
1,411 | -6,320 | 3,355 | - | - | - | -689 | 175 | -263 | 631 | - | - |
Foreign currency translation adjustment | |||||||||||
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | |||||||||||
- | - | - | 1,830 | - | - | - | - | - | - | - | - |
Unrealized gain on investments, net of tax | |||||||||||
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax | |||||||||||
- | - | - | 750 | - | - | - | - | - | - | - | - |