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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2016
Segment Reporting Information, Revenue for Reportable Segment [Abstract] |
Measurements Used by Management to Assess Performance of Segments | The following table illustrates certain measurements used by management to assess the performance of the segments described above as of and for the years ended December 31 (in thousands):
| 2016 |  | 2015 |  | 2014
Net sales: |  |  |  |  |
Residential Products | $ | 430,938 |  |  | $ | 475,653 |  |  | $ | 431,915 |
Industrial and Infrastructure Products | 296,513 |  |  | 378,224 |  |  | 431,432 |
Less: Intersegment sales | (1,495 | ) |  | (1,536 | ) |  | (1,260 | )
| 295,018 |  |  | 376,688 |  |  | 430,172 |
Renewable Energy and Conservation | 282,025 |  |  | 188,532 |  |  | — |
Total consolidated net sales | $ | 1,007,981 |  |  | $ | 1,040,873 |  |  | $ | 862,087 |
Income (loss) from operations: |  |  |  |  |
Residential Products | $ | 65,241 |  |  | $ | 46,804 |  |  | $ | 16,416 |
Industrial and Infrastructure Products | 1,306 |  |  | 15,581 |  |  | (74,634 | )
Renewable Energy and Conservation | 43,214 |  |  | 12,659 |  |  | — |
Unallocated Corporate Expenses | (36,797 | ) |  | (26,959 | ) |  | (12,199 | )
| $ | 72,964 |  |  | $ | 48,085 |  |  | $ | (70,417 | )
Depreciation and Amortization |  |  |  |  |
Residential Products | $ | 9,297 |  |  | $ | 9,967 |  |  | $ | 10,699 |
Industrial and Infrastructure Products | 8,237 |  |  | 12,108 |  |  | 13,910 |
Renewable Energy and Conservation | 6,203 |  |  | 7,811 |  |  | — |
Unallocated Corporate Expenses | 377 |  |  | 662 |  |  | 823 |
| $ | 24,114 |  |  | $ | 30,548 |  |  | $ | 25,432 |
Total assets |  |  |  |  |
Residential Products | $ | 331,975 |  |  | $ | 363,339 |  |  | $ | 394,092 |
Industrial and Infrastructure Products | 225,691 |  |  | 273,987 |  |  | 308,150 |
Renewable Energy and Conservation | 207,241 |  |  | 215,211 |  |  | — |
Unallocated Corporate | 153,338 |  |  | 37,235 |  |  | 108,229 |
| $ | 918,245 |  |  | $ | 889,772 |  |  | $ | 810,471 |
Capital expenditures |  |  |  |  |
Residential Products | $ | 5,182 |  |  | $ | 3,328 |  |  | $ | 12,731 |
Industrial and Infrastructure Products | 2,060 |  |  | 4,846 |  |  | 10,425 |
Renewable Energy and Conservation | 3,160 |  |  | 3,871 |  |  | — |
Unallocated Corporate Expenses | 377 |  |  | 328 |  |  | 135 |
| $ | 10,779 |  |  | $ | 12,373 |  |  | $ | 23,291 |
Net Sales by Region or Origin and Long-Lived Assets by Region of Domicile | Net sales by region or origin and long-lived assets by region of domicile for the years ended and as of December 31 are as follows (in thousands):
| 2016 |  | 2015 |  | 2014
Net sales |  |  |  |  |
North America | $ | 963,797 |  |  | $ | 968,414 |  |  | $ | 816,473 |
Europe | 19,447 |  |  | 48,216 |  |  | 45,614 |
Asia | 24,737 |  |  | 24,243 |  |  | — |
Total | $ | 1,007,981 |  |  | $ | 1,040,873 |  |  | $ | 862,087 |
Long-lived assets |  |  |  |  |
North America | $ | 108,334 |  |  | $ | 110,571 |  |  | $ | 122,824 |
Europe | 2,900 |  |  | 11,084 |  |  | 8,957 |
Asia | 992 |  |  | 1,292 |  |  | — |
Total | $ | 112,226 |  |  | $ | 122,947 |  |  | $ | 131,781 |

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