Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill

v3.10.0.1
Intangible Assets and Goodwill
6 Months Ended
Jun. 30, 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
 
932,403

 

 
932,403

Balance at June 30, 2018
 
$
932,403

 
25,569

 
957,972



Intangible Assets Subject to Amortization
 
 
June 30, 2018
 
    
Gross
    
 
    
Net
 
 
carrying
 
Accumulated
 
carrying
 
 
amount
 
amortization
 
amount
 
 
amounts in thousands
Customer relationships
 
$
443,268

 
(36,446
)
 
406,822

Other amortizable intangibles
 
112,596

 
(27,100
)
 
85,496

Total
 
$
555,864

 
(63,546
)
 
492,318



Amortization expense for intangible assets with finite useful lives was $16.4 million and $780 thousand for the three months ended June 30, 2018 and 2017, respectively. Amortization expense for intangible assets with finite useful lives was $21.6 million and $1.5 million for the six months ended June 30, 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
$
30,506

2019
$
60,659

2020
$
52,643

2021
$
47,364

2022
$
40,946