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Segments (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) segment customer | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 2 |  |
Number of operating segments | segment |  |  |  |  |  |  |  |  | 2 |  |
Number of customers | customer |  |  |  |  |  |  |  |  | 0 |  |
Net sales | $ 152,945 | $ 127,636 | $ 157,530 | $ 103,342 | $ 158,160 | $ 133,761 | $ 120,043 | $ 68,190 | $ 541,453 | $ 480,154 | $ 571,710
Adjusted EBITDA |  |  |  |  |  |  |  |  | 79,536 | 74,892 | 108,105
Depreciation and amortization expense |  |  |  |  |  |  |  |  | 20,316 | 19,737 | 19,212
Assets | 572,476 |  |  |  | 579,202 |  |  |  | 572,476 | 579,202 | 705,695
Capital Expenditures including adjustments to accruals and payables |  |  |  |  |  |  |  |  | 11,881 | 14,682 | 11,663
Interest expense, net |  |  |  |  |  |  |  |  | 11,839 | 20,238 | 16,782
Depreciation expense |  |  |  |  |  |  |  |  | 9,634 | 8,806 | 8,256
Amortization |  |  |  |  |  |  |  |  | 10,682 | 10,931 | 10,956
Purchase accounting |  |  |  |  |  |  |  |  |  | (2,017) | (417)
Stock-based compensation |  |  |  |  |  |  |  |  | 5,794 | 2,830 | 3,239
Impairment charges |  |  |  |  |  |  |  |  | 1,211 | 127,872 |
Debt modification expense |  |  |  |  |  |  |  |  |  | 3,542 |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  | 4,936 |  |
Litigation proceeds |  |  |  |  |  |  |  |  |  |  | (200)
Pension termination |  |  |  |  |  |  |  |  |  |  | 6,609
COVID-19 |  |  |  |  |  |  |  |  | 82 | 1,391 |
Other charges |  |  |  |  |  |  |  |  | 770 | 128 | 263
Income (loss) before taxes | 10,770 | $ 8,234 | $ 14,919 | $ 665 | 23,370 | $ 12,464 | $ (121,315) | $ (13,348) | 34,588 | (98,829) | 62,617
Reversal of earn out compensation |  |  |  |  |  |  |  |  |  | (2,017) | (417)
Dejana |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Purchase accounting |  |  |  |  |  |  |  |  |  | 2,000 | 200
Reversal of earn out compensation |  |  |  |  |  |  |  |  |  | 2,000 | 200
Henderson |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Purchase accounting |  |  |  |  |  |  |  |  |  | 17 | 217
Reversal of earn out compensation |  |  |  |  |  |  |  |  |  | 17 | 217
Work Truck Attachments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 325,707 | 252,838 | 293,630
Adjusted EBITDA |  |  |  |  |  |  |  |  | $ 77,369 | 62,532 | 80,747
Work Truck Solutions |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 2 |  |
Net sales |  |  |  |  |  |  |  |  | $ 215,746 | 227,316 | 278,080
Adjusted EBITDA |  |  |  |  |  |  |  |  | 2,167 | 12,360 | 27,358
Operating segment | Work Truck Attachments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 325,707 | 252,838 | 293,630
Adjusted EBITDA |  |  |  |  |  |  |  |  | 77,369 | 62,532 | 80,747
Depreciation and amortization expense |  |  |  |  |  |  |  |  | 11,937 | 10,824 | 10,217
Assets | 384,566 |  |  |  | 365,210 |  |  |  | 384,566 | 365,210 | 361,876
Capital Expenditures including adjustments to accruals and payables |  |  |  |  |  |  |  |  | 10,434 | 13,174 | 9,417
Operating segment | Work Truck Solutions |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 215,746 | 227,316 | 278,080
Adjusted EBITDA |  |  |  |  |  |  |  |  | 2,167 | 12,360 | 27,358
Depreciation and amortization expense |  |  |  |  |  |  |  |  | 8,379 | 8,913 | 8,995
Assets | $ 187,910 |  |  |  | $ 213,992 |  |  |  | 187,910 | 213,992 | 343,819
Capital Expenditures including adjustments to accruals and payables |  |  |  |  |  |  |  |  | $ 1,447 | $ 1,508 | $ 2,246

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