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Goodwill and Intangible Assets
3 Months Ended
Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Disclosure [Text Block]
Estimated annual amortization expense for finite-lived intangible assets subsequent to March 31, 2016 is as follows:
(in thousands)
 
Amount
2016 (remaining)
 
$
29,698

2017
 
39,597

2018
 
39,597

2019
 
39,597

2020
 
39,597

Thereafter
 
550,508

 
 
$
738,594