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Acquisitions Acquisition (Details 1) - USD ($) | Mar. 03, 2018 | Jun. 13, 2017 | Jun. 12, 2017 | Mar. 04, 2017 | Dec. 14, 2016 | Feb. 27, 2016
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Business Acquisition |  |  |  |  |  |
Goodwill | $ 180,956,000 |  |  | $ 101,334,000 |  | $ 73,996,000
EFCO Corporation |  |  |  |  |  |
Business Acquisition |  |  |  |  |  |
Net working capital |  | $ 2,000,000 | $ 7,689,000 |  |  |
Property, plant and equipment |  |  | 44,641,000 |  |  |
Goodwill |  |  | 84,162,000 |  |  |
Other intangible assets |  |  | 71,500,000 |  |  |
Less: Long-term liabilities acquired, net |  |  | 17,643,000 |  |  |
Net assets acquired |  |  | $ 190,349,000 |  |  |
Sotawall |  |  |  |  |  |
Business Acquisition |  |  |  |  |  |
Net working capital |  |  |  |  | $ 10,682 |
Property, plant and equipment |  |  |  |  | 7,993 |
Goodwill |  |  |  |  | 21,380 |
Other intangible assets |  |  |  |  | 94,630 |
Net assets acquired |  |  |  |  | $ 134,685 |

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