GOODWILL AND OTHER INTANGIBLES

6 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

The following table provides changes in the carrying value of goodwill by segment during the six months ended March 31, 2017:



	At September 30, 2016		Other adjustments including currency translations			At March 31, 2017
Home & Building Products	$	287,617	$	(30	)	$	287,587
Telephonics	18,545		—			18,545
PPC	55,023		(1,070		)	53,953
Total	$	361,185	$	(1,100	)	$	360,085

The following table provides the gross carrying value and accumulated amortization for each major class of intangible assets:



	At March 31, 2017					At September 30, 2016
	Gross Carrying Amount		Accumulated Amortization		Average Life (Years)	Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	169,926	$	50,095	25	$	170,652	$	47,217
Unpatented technology	5,989		4,280		12.5	6,073		4,060
Total amortizable intangible assets	175,915		54,375			176,725		51,277
Trademarks	89,136		—			85,151		—
Total intangible assets	$	265,051	$	54,375		$	261,876	$	51,277

Amortization expense for intangible assets was $1,862 and $1,870 for the quarters ended March 31, 2017 and 2016, respectively, and $3,723 and $3,745 for the six months ended March 31, 2017 and 2016, respectively.

No event or indicator of impairment occurred during the six months ended March 31, 2017 which would require impairment testing of long-lived intangible assets including goodwill.

- 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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