Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Narrative) (Details)

v3.20.1
Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization of intangible assets $ 13,071 $ 15,578 $ 21,327
Estimated useful life 9 years 9 months 6 days