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Goodwill and Related Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule Of Changes In Carrying Amount Of Goodwill | The changes in the carrying amount of goodwill for the nine months ended September 30, 2017 are as follows (in thousands):
| Residential Products |  | Industrial and Infrastructure Products |  | Renewable Energy & Conservation |  | Total
Balance at December 31, 2016 | $ | 181,285 |  |  | $ | 53,884 |  |  | $ | 68,863 |  |  | $ | 304,032 |
Acquired goodwill | 16,863 |  |  | — |  |  | — |  |  | 16,863 |
Adjustments to prior year acquisitions | — |  |  | — |  |  | (832 | ) |  | (832 | )
Foreign currency translation | — |  |  | 432 |  |  | 598 |  |  | 1,030 |
Balance at September 30, 2017 | $ | 198,148 |  |  | $ | 54,316 |  |  | $ | 68,629 |  |  | $ | 321,093 |
Schedule Of Acquired Intangible Assets | Acquired intangible assets consist of the following (in thousands):
| September 30, 2017 |  | December 31, 2016 |  |
| Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization |  | Estimated Life
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |
Trademarks | $ | 45,153 |  |  | $ | — |  |  | $ | 44,720 |  |  | $ | — |  |  | Indefinite
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |
Trademarks | 5,882 |  |  | 2,921 |  |  | 5,808 |  |  | 2,427 |  |  | 5 to 15 Years
Unpatented technology | 28,020 |  |  | 11,523 |  |  | 26,720 |  |  | 10,041 |  |  | 5 to 20 Years
Customer relationships | 80,719 |  |  | 38,182 |  |  | 78,569 |  |  | 33,585 |  |  | 5 to 17 Years
Non-compete agreements | 1,649 |  |  | 854 |  |  | 1,649 |  |  | 623 |  |  | 4 to 10 Years
Backlog | — |  |  | — |  |  | 900 |  |  | 900 |  |  | 0.25 Years
| 116,270 |  |  | 53,480 |  |  | 113,646 |  |  | 47,576 |  |  |
Total acquired intangible assets | $ | 161,423 |  |  | $ | 53,480 |  |  | $ | 158,366 |  |  | $ | 47,576 |  |  |
Schedule of Acquired Intangible Asset Amortization Expense | The following table summarizes the acquired intangible asset amortization expense for the three and nine months ended September 30 (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Amortization expense | $ | 2,208 |  |  | $ | 2,159 |  |  | $ | 6,600 |  |  | $ | 6,541 |
Schedule Of Amortization Expense | Amortization expense related to acquired intangible assets for the remainder of fiscal 2017 and the next five years thereafter is estimated as follows (in thousands):
2017 | $2,157
2018 | $8,288
2019 | $7,617
2020 | $7,105
2021 | $6,503
2022 | $6,092

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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