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Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets
Finite-lived intangible assets represent customer relationships and consist of the following at December 31:
(in thousands)
 
2018

 
2017

Cost
 
$
96,598

 
$
6,300

Accumulated Amortization
 
(11,203
)
 
(5,202
)
Carrying Value
 
$
85,395

 
$
1,098