| Schedule of financial information by segment |
Financial information by segment (in thousands): | | | | | | | | | | | | | | | | | Year Ended December 31, 2014 | PBM | | HCIT | | Corporate | | Total | Revenue | $ | 21,429,983 |
| | $ | 151,907 |
| | $ | — |
| | $ | 21,581,890 |
| Cost of revenue | 20,155,768 |
| | 66,069 |
| | — |
| | 20,221,837 |
| Gross profit | 1,274,215 |
| | 85,838 |
| | — |
| | 1,360,053 |
| Corporate expenses | — |
| | — |
| | 852,145 |
| | 852,145 |
| Income before income taxes | — |
| | — |
| | — |
| | 507,908 |
| Income tax expense | — |
| | — |
| | — |
| | 134,186 |
| Net income | — |
| | — |
| | — |
| | 373,722 |
| Less net income attributable to non-controlling interest | — |
| | — |
| | — |
| | 56,429 |
| Net income attributable to the Company | — |
| | — |
| | — |
| | 317,293 |
| Goodwill | 4,704,974 |
| | 19,665 |
| | — |
| | 4,724,639 |
| Total assets | $ | 9,103,603 |
| | $ | 220,582 |
| | $ | — |
| | $ | 9,324,185 |
|
| | | | | | | | | | | | | | | | | Year Ended December 31, 2013 | PBM | | HCIT | | Corporate | | Total | Revenue | $ | 14,632,104 |
| | $ | 147,990 |
| | $ | — |
| | $ | 14,780,094 |
| Cost of revenue | 13,583,941 |
| | 70,508 |
| | — |
| | 13,654,449 |
| Gross profit | 1,048,163 |
| | 77,482 |
| | — |
| | 1,125,645 |
| Corporate expenses | — |
| | — |
| | 723,503 |
| | 723,503 |
| Income before income taxes | — |
| | — |
| | — |
| | 402,142 |
| Income tax expense | — |
| | — |
| | — |
| | 103,403 |
| Net income | — |
| | — |
| | — |
| | 298,739 |
| Less net income attributable to non-controlling interest | — |
| | — |
| | — |
| | 36,569 |
| Net income attributable to the Company | — |
| | — |
| | — |
| | 262,170 |
| Goodwill | 4,700,610 |
| | 19,665 |
| | — |
| | 4,720,275 |
| Total assets | $ | 7,634,033 |
| | $ | 361,730 |
| | $ | — |
| | $ | 7,995,763 |
|
| | | | | | | | | | | | | | | | | Year Ended December 31, 2012 | PBM | | HCIT | | Corporate | | Total | Revenue | $ | 9,785,084 |
| | $ | 155,036 |
| | $ | — |
| | $ | 9,940,120 |
| Cost of revenue | 9,141,029 |
| | 65,715 |
| | — |
| | 9,206,744 |
| Gross profit | 644,055 |
| | 89,321 |
| | — |
| | 733,376 |
| Corporate expenses | — |
| | — |
| | 543,039 |
| | 543,039 |
| Income before income taxes | — |
| | — |
| | — |
| | 190,337 |
| Income tax expense | — |
| | — |
| | — |
| | 69,316 |
| Net income | — |
| | — |
| | — |
| | 121,021 |
| Less net income attributable to non-controlling interest | — |
| | — |
| | — |
| | 4,363 |
| Net income attributable to the Company | — |
| | — |
| | — |
| | 116,658 |
| Goodwill | 4,458,373 |
| | 19,665 |
| | — |
| | 4,478,038 |
| Total assets | $ | 7,159,098 |
| | $ | 226,029 |
| | | | $ | 7,385,127 |
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