Goodwill and Related Intangible Assets

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill for the nine months ended September 30, 2016 are as follows (in thousands):



	Residential Products		Industrial and Infrastructure Products		Renewable Energy & Conservation		Total
Balance at December 31, 2015	$	181,285	$	53,704	$	57,401	$	292,390
Foreign currency translation	—		298		2,170		2,468
Balance at September 30, 2016	$	181,285	$	54,002	$	59,571	$	294,858

The goodwill balances as of September 30, 2016 and December 31, 2015 are net of accumulated impairment losses of $234,490,000.

Acquired Intangible Assets

Acquired intangible assets consist of the following (in thousands):



	September 30, 2016				December 31, 2015
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization		Estimated Life
Indefinite-lived intangible assets:
Trademarks	$	50,827	$	—	$	50,538	$	—	Indefinite
Finite-lived intangible assets:
Trademarks	5,828		2,278		5,861		1,884		5 to 15 Years
Unpatented technology	25,663		9,590		28,072		10,656		5 to 20 Years
Customer relationships	79,156		32,322		85,419		35,673		5 to 17 Years
Non-compete agreements	1,649		545		3,107		1,771		4 to 10 Years
Backlog	—		—		6,480		6,480		0.5 to 2 Years
	112,296		44,735		128,939		56,464
Total acquired intangible assets	$	163,123	$	44,735	$	179,477	$	56,464

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,
	2016		2015		2016		2015
Amortization expense	$	2,159	$	4,783	$	6,541	$	8,794

Amortization expense related to acquired intangible assets for the remainder of fiscal 2016 and the next five years thereafter is estimated as follows (in thousands):



2016	$2,157
2017	$8,366
2018	$7,811
2019	$7,127
2020	$6,613
2021	$6,011

- 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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