Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill by segment are as follows:



	Electrical Infrastructure			Oil Gas & Chemical		Storage Solutions			Industrial			Total
	(In thousands)
Net balance at June 30, 2014	$	43,243		$	10,943	$	10,027		$	5,624		$	69,837
Acquisition related adjustments	175			—		—			44			219
Purchase of HDB (Note 2)	—			3,065		—			—			3,065
Translation adjustment ⁽¹⁾	(1,044		)	—		(363		)	(196		)	(1,603		)
Net balance at June 30, 2015	42,374			14,008		9,664			5,472			71,518
Purchase of BTE (Note 2)	—			—		6,942			—			6,942
Translation adjustment ⁽¹⁾	(204		)	—		75			(38		)	(167		)
Net balance at June 30, 2016	42,170			14,008		16,681			5,434			78,293
Purchase of Houston Interests (Note 2)	—			19,596		—			15,550			35,146
Acquisition related adjustments	—			—		88			—			88
Translation adjustment ⁽¹⁾	(18		)	—		(5		)	(3		)	(26		)
Net balance at June 30, 2017	$	42,152		$	33,604	$	16,764		$	20,981		$	113,501

Carrying value of other intangible assets

Information on the carrying value of other intangible assets is as follows:



		At June 30, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Years)	(In thousands)
Intellectual property	9 to 15	$	2,579	$	(1,425	)	$	1,154
Customer based	1 to 15	38,207		(13,543		)	24,664
Non-compete Agreements	4 to 5	1,453		(1,298		)	155
Trade names	1 to 3	1,630		(1,307		)	323
Total other intangible assets		$	43,869	$	(17,573	)	$	26,296



		At June 30, 2016
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Years)	(In thousands)
Intellectual property	9 to 15	$	2,579	$	(1,246	)	$	1,333
Customer based	1.5 to 15	28,179		(9,655		)	18,524
Non-compete agreements	4 to 5	1,453		(1,102		)	351
Trade name	3 to 5	1,615		(824		)	791
Total other intangible assets		$	33,826	$	(12,827	)	$	20,999

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Amortization expense totaled $4.9 million, $3.6 million, and $5.0 million in fiscal 2017, 2016, and 2015, respectively. The Company recognized $1.6 million of amortization expense during the year ended June 30, 2017 for intangible assets recorded as part of the Houston Interests acquisition. We estimate that future amortization of other intangible assets will be as follows (in thousands):



For year ending:
June 30, 2018	$	4,742
June 30, 2019	3,501
June 30, 2020	3,491
June 30, 2021	3,472
June 30, 2022	2,618
Thereafter	8,472
Total estimated amortization expense	$	26,296