| Segment for the results of operations |
The following table represents the significant items by reportable segment for the results of operations for the years ended December 31, 2016, 2015 and 2014: | | | | | | | | | | | | | | 2016 | | 2015 | | 2014 | Net sales: | | | | | | Biomass-based Diesel (includes Petrotec's net sales of $171,358, $145,039, and $3,563, respectively) | $ | 1,952,361 |
| | $ | 1,326,452 |
| | $ | 1,264,850 |
| Services | 87,014 |
| | 102,731 |
| | 85,149 |
| Renewable Chemicals | 2,065 |
| | — |
| | — |
| Corporate and other | 106,572 |
| | 68,984 |
| | 11,940 |
| Intersegment revenues | (106,780 | ) | | (110,823 | ) | | (88,108 | ) | | $ | 2,041,232 |
| | $ | 1,387,344 |
| | $ | 1,273,831 |
| Income (loss) before income taxes | | | | | | Biomass-based diesel (includes Petrotec's income (loss) of $5,007, $(1,643), and $(337), respectively) | $ | 64,814 |
| | $ | (100,152 | ) | | $ | 104,136 |
| Services | 2,970 |
| | 6,323 |
| | 6,980 |
| Renewable Chemicals | (19,787 | ) | | (52,728 | ) | | (12,252 | ) | Corporate and other | 984 |
| | (13,854 | ) | | (12,754 | ) | | $ | 48,981 |
| | $ | (160,411 | ) | | $ | 86,110 |
| Depreciation and amortization expense, net: | | | | | | Biomass-based diesel (includes Petrotec's amounts of $2,849, $3,259, and $0, respectively) | $ | 29,018 |
| | $ | 22,799 |
| | $ | 13,497 |
| Services | 613 |
| | 302 |
| | 204 |
| Renewable Chemicals | 1,550 |
| | 1,413 |
| | 1,293 |
| Corporate and other | 1,696 |
| | 1,362 |
| | 802 |
| | $ | 32,877 |
| | $ | 25,876 |
| | $ | 15,796 |
| Cash paid for purchases of property, plant and equipment: | | | | | | Biomass-based diesel (includes Petrotec's amounts of $1,353, $1,816, and $0, respectively) | $ | 52,952 |
| | $ | 59,859 |
| | $ | 52,846 |
| Services | 4,731 |
| | 1,510 |
| | 643 |
| Renewable Chemicals | 473 |
| | 672 |
| | 532 |
| Corporate and other | 2,549 |
| | 2,436 |
| | 6,142 |
| | $ | 60,705 |
| | $ | 64,477 |
| | $ | 60,163 |
|
| | | | | | | | | | 2016 | | 2015 | Goodwill: | | | | Biomass-based diesel | $ | — |
| | $ | — |
| Services | 16,080 |
| | 16,080 |
| Renewable Chemicals | — |
| | — |
| | $ | 16,080 |
| | $ | 16,080 |
| Assets: | | | | Biomass-based diesel (including Petrotec's assets of $51,822 and $45,471) | $ | 1,026,349 |
| | $ | 1,048,923 |
| Services | 53,823 |
| | 60,308 |
| Renewable Chemicals | 22,883 |
| | 23,872 |
| Corporate and other | 299,825 |
| | 308,782 |
| Intersegment eliminations | (266,277 | ) | | (218,265 | ) | | $ | 1,136,603 |
| | $ | 1,223,620 |
|
|
| Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas |
The following geographic data include net sales attributed to the countries based on the location of the subsidiary making the sale and long-lived assets based on physical location. Long-lived assets represent the net book value of property, plant and equipment. Sales and long-lived assets of the Company's investment in Petrotec comprise substantially all of the amounts categorized as Foreign in the table below. | | | | | | | | | | | | | | | | 2016 | | 2015 | | 2014 | Net sales: | | | | | | United States | $ | 1,869,874 |
| | $ | 1,242,305 |
| | $ | 1,270,268 |
| Foreign | 171,358 |
| | 145,039 |
| | 3,563 |
| | $ | 2,041,232 |
| | $ | 1,387,344 |
| | $ | 1,273,831 |
| | | | | | 2016 | | 2015 | Long-lived assets: | | | | United States | $ | 580,868 | | | $ | 553,987 | | Foreign | 18,606 | | | 20,597 | | | $ | 599,474 | | | $ | 574,584 | |
|