Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets, Net and Goodwill (Narrative) (Details)

v3.8.0.1
Intangible Assets, Net and Goodwill (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]          
Amortization of Intangible Assets $ 745,000 $ 1,287,000 $ 3,138,000 $ 3,860,000  
Goodwill $ 68,594,000 $ 68,594,000 $ 68,594,000 $ 68,594,000 $ 68,594,000
Minimum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     3 years