Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets

v3.19.1
Intangible Assets
 3 Months Ended
Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets

Intangible Assets Subject to Amortization
 
 
March 31, 2019
 
    
Gross
    
 
    
Net
 
 
carrying
 
Accumulated
 
carrying
 
 
amount
 
amortization
 
amount
 
 
amounts in thousands
Customer relationships
 
$
408,267

 
(65,354
)
 
342,913

Other amortizable intangibles
 
126,453

 
(45,935
)
 
80,518

Total
 
$
534,720

 
(111,289
)
 
423,431



Amortization expense for intangible assets with finite useful lives was $16.3 million and $5.2 million for the three months ended March 31, 2019 and 2018, respectively. Amortization expense for amortizable intangible assets for each of the five succeeding fiscal years is estimated to be (amounts in thousands):
Remainder of 2019
$
44,525

2020
$
51,997

2021
$
41,616

2022
$
36,009

2023
$
33,260