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Intangible Assets Including Goodwill (Notes)
6 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Including Goodwill
Intangible Assets Including Goodwill
Goodwill
The changes in the carrying value of goodwill by segment are as follows:
 
Electrical
Infrastructure
 
Oil Gas &
Chemical
 
Storage
Solutions
 
Industrial
 
Total
 
(In thousands)
Net balance at June 30, 2017
$
42,152

 
$
33,604

 
$
16,764

 
$
20,981

 
$
113,501

Translation adjustment (1)
184

 

 
126

 
34

 
344

Net balance at December 31, 2017
$
42,336

 
$
33,604

 
$
16,890

 
$
21,015

 
$
113,845

(1)
The translation adjustments relate to the periodic translation of Canadian Dollar and South Korean Won denominated goodwill recorded as a part of prior acquisitions in Canada and South Korea, in which the local currency was determined to be the functional currency.

We performed our annual goodwill impairment test as of May 31, 2017, which resulted in no impairment. However, the aggregate difference between the fair values of our reporting units and their carrying amounts decreased significantly since the previous year's test as a result of market conditions at that time. The fair value of one reporting unit (carrying value of goodwill of $8.0 million) only exceeded its carrying amount by 9%. The valuation model for this reporting unit assumed the award of a significant project prior to the end of the second fiscal quarter, with project work to commence shortly thereafter. This project award was subsequently obtained during the first fiscal quarter of 2018. Management is not aware of any qualitative indicators of goodwill impairment as of December 31, 2017. The Company will continue to monitor for indicators of impairment and perform additional tests as needed.
Other Intangible Assets
Information on the carrying value of other intangible assets is as follows:
 
 
 
At December 31, 2017
  
Useful Life
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Amount
 
(Years)
 
(In thousands)
Intellectual property
9 to 15
 
$
2,579

 
$
(1,514
)
 
$
1,065

Customer-based
6 to 15
 
40,339

 
(16,092
)
 
24,247

Non-compete agreements
4
 
1,453

 
(1,401
)
 
52

Trade names
 
1,630

 
(1,630
)
 

Total amortizing intangible assets
 
 
$
46,001

 
$
(20,637
)
 
$
25,364

 
 
 
 
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 amortizing intangible assets
 
 
$
43,869

 
$
(17,573
)
 
$
26,296



In December 2017, the Company settled a portion of an account receivable with a customer in exchange for $50.0 million of backlog, which the Company expects to recognize as revenue over the next six years. The Company has recognized the backlog as a customer-based intangible asset with an estimated fair value of $2.0 million. The value assigned to the backlog approximated the net book value of the account receivable included in the settlement. The amortization expense will be recognized as the work is completed.

Amortization expense totaled $1.4 million and $3.0 million during the three and six months ended December 31, 2017, respectively, and $1.0 million and $1.8 million during the three and six months ended December 31, 2016, respectively.

We estimate that the remaining amortization expense related to December 31, 2017 amortizing intangible assets will be as follows (in thousands):
Period ending:
 
Remainder of Fiscal 2018
$
1,932

Fiscal 2019
3,851

Fiscal 2020
3,834

Fiscal 2021
3,822

Fiscal 2022
2,954

Fiscal 2023
2,418

Thereafter
6,553

Total estimated remaining amortization expense at December 31, 2017
$
25,364