Goodwill and Related Intangible Assets

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

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

Goodwill is recognized net of accumulated impairment losses of $235,419,000 as of September 30, 2017 and December 31, 2016.

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

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

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

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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