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Goodwill and Other Intangible Assets
3 Months Ended
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets
4. GOODWILL AND OTHER INTANGIBLE ASSETS: The change in the net carrying amount of goodwill for the three months ended March 31, 2018 by segment was as follows (in thousands):

 

     Steel Mills      Steel Products      Raw Materials      Total  

Balance at December 31, 2017

   $ 745,484      $ 720,997      $ 729,577      $ 2,196,058  

Translation

     —          (493      —          (493

Reclassifications

     (153,498      153,498        —          —    
  

 

 

    

 

 

    

 

 

    

 

 

 

Balance at March 31, 2018

   $ 591,986      $ 874,002      $ 729,577      $ 2,195,565  
  

 

 

    

 

 

    

 

 

    

 

 

 

 

Previously, Nucor’s tubular products and piling businesses were reported in the steel mills segment. Beginning in the first quarter of 2018, these businesses were reclassified to the steel products segment to better reflect the way in which they are viewed by management.

Nucor completed its most recent annual goodwill impairment testing during the fourth quarter of 2017 and concluded that as of such time there was no impairment of goodwill for any of its reporting units. There have been no triggering events requiring an interim assessment for impairment since the most recent annual goodwill impairment testing date.

Intangible assets with estimated useful lives of five to 22 years are amortized on a straight-line or accelerated basis and were comprised of the following as of March 31, 2018 and December 31, 2017 (in thousands):

 

     March 31, 2018      December 31, 2017  
     Gross
Amount
     Accumulated
Amortization
     Gross
Amount
     Accumulated
Amortization
 

Customer relationships

   $ 1,420,166      $ 659,469      $ 1,420,224      $ 641,089  

Trademarks and trade names

     176,457        79,833        176,471        77,208  

Other

     62,807        28,007        62,805        26,557  
  

 

 

    

 

 

    

 

 

    

 

 

 
   $ 1,659,430      $ 767,309      $ 1,659,500      $ 744,854  
  

 

 

    

 

 

    

 

 

    

 

 

 

Intangible asset amortization expense for the first quarter of 2018 and 2017 was $22.5 million and $22.4 million, respectively. Annual amortization expense is estimated to be $88.6 million in 2018; $86.7 million in 2019; $84.4 million in 2020; $83.1 million in 2021; and $80.8 million in 2022.