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Goodwill and Other Intangible Assets
 12 Months Ended
Dec. 28, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets

Goodwill

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

(In thousands)
 
Piping Systems
 
Industrial Metals
 
Climate
 
Total
 
 
 
 
 
 
 
 
 
Goodwill
 
$
166,428

 
$
8,854

 
$
4,416

 
$
179,698

Accumulated impairment charges
 
(40,552
)
 
(8,853
)
 
—

 
(49,405
)
 
 
 
 
 
 
 
 
 
Balance at December 30, 2017:
 
125,876

 
1

 
4,416

 
130,293

 
 
 
 
 
 
 
 
 
Additions (1)
 
5,049

 
—

 
17,770

 
22,819

Currency translation
 
(2,777
)
 
—

 
—

 
(2,777
)
 
 
 
 
 
 
 
 
 
Balance at December 29, 2018:
 
128,148

 
1

 
22,186

 
150,335

 
 
 
 
 
 
 
 
 
Additions (2)
 
1,999

 
—

 
—

 
1,999

Reductions (3)
 
—

 
—

 
(534
)
 
(534
)
Currency translation
 
1,476

 
—

 
—

 
1,476

 
 
 
 
 
 
 
 
 
Balance at December 28, 2019:
 
 

 
 

 
 

 
 

Goodwill
 
172,175

 
8,854

 
21,652

 
202,681

Accumulated impairment charges
 
(40,552
)
 
(8,853
)
 
—

 
(49,405
)
 
 
 
 
 
 
 
 
 
Goodwill, net
 
$
131,623

 
$
1

 
$
21,652

 
$
153,276


(1) Includes finalization of the purchase price allocation adjustment for Heatlink Group of $2.8 million.
(2) Includes finalization of the purchase price allocation adjustment for Die-Mold of $2.0 million.
(3) Includes finalization of the purchase price allocation adjustment for ATCO of $0.5 million.
Reporting units with recorded goodwill include Domestic Piping Systems Group, B&K LLC, Great Lakes, Heatlink Group, Die-Mold, European Operations, Jungwoo-Mueller, Westermeyer, Turbotec, and ATCO.  Several factors give rise to goodwill in the Company’s acquisitions, such as the expected benefit from synergies of the combination and the existing workforce of the acquired businesses.  There were no impairment charges resulting from the 2019, 2018, or 2017 annual impairment tests as the estimated fair value of each of the reporting units exceeded its carrying value.  

Other Intangible Assets

The carrying amount of intangible assets at December 28, 2019 was as follows:

 
(In thousands)
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
 
 
 
 
 
 
Customer relationships
 
$
44,832

 
$
(8,773
)
 
$
36,059

Non-compete agreements
 
2,499

 
(2,156
)
 
343

Patents and technology
 
19,804

 
(4,060
)
 
15,744

Trade names and licenses
 
10,155

 
(3,249
)
 
6,906

Other
 
1,676

 
(646
)
 
1,030

 
 
 
 
 
 
 
Other intangible assets
 
$
78,966

 
$
(18,884
)
 
$
60,082


The carrying amount of intangible assets at December 29, 2018 was as follows:

 
(In thousands)
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
 
 
 
 
 
 
Customer relationships
 
$
43,104

 
$
(6,309
)
 
$
36,795

Non-compete agreements
 
2,400

 
(1,582
)
 
818

Patents and technology
 
17,879

 
(2,595
)
 
15,284

Trade names and licenses
 
9,173

 
(2,188
)
 
6,985

Other
 
2,526

 
(437
)
 
2,089

 
 
 
 
 
 
 
Other intangible assets
 
$
75,082

 
$
(13,111
)
 
$
61,971



Amortization expense for intangible assets was $5.4 million in 2019, $4.4 million in 2018, and $3.1 million in 2017.  Future amortization expense is estimated as follows:

(In thousands)
 
Amount
 
 
 
2020
 
$
5,203

2021
 
4,916

2022
 
4,836

2023
 
4,525

2024
 
4,378

Thereafter
 
36,224

 
 
 

Expected amortization expense
 
$
60,082