Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill

v3.8.0.1
Intangible Assets and Goodwill
3 Months Ended
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets and Goodwill
Intangible Assets and Goodwill

Goodwill
 
 
GCI Holdings
 
Corporate and other
 
Total
 
 
amounts in thousands
Balance at January 1, 2018
 
$

 
25,569

 
25,569

Acquisitions
 
924,629

 

 
924,629

Balance at March 31, 2018
 
$
924,629

 
25,569

 
950,198



Intangible Assets Subject to Amortization
 
 
March 31, 2018
 
    
Gross
    
 
    
Net
 
 
carrying
 
Accumulated
 
carrying
 
 
amount
 
amortization
 
amount
 
 
amounts in thousands
Customer relationships
 
$
483,267

 
(26,462
)
 
456,805

Other amortizable intangibles
 
108,320

 
(20,710
)
 
87,610

Total
 
$
591,587

 
(47,172
)
 
544,415



Amortization expense for intangible assets with finite useful lives was $5.2 million and $723 thousand for the three months ended March 31, 2018 and 2017, respectively. Amortization expense for amortizable intangible assets for each of the five succeeding fiscal years is estimated to be (amounts in thousands):
Remainder of 2018
$
51,699

2019
$
62,808

2020
$
57,159

2021
$
49,522

2022
$
39,047