Intangible Assets and Goodwill Schedule of Future Amortization for Finite Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Future Amortization Expense [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 6,275
Finite-Lived Intangible Assets, Amortization Expense, Year Two	6,240
Finite-Lived Intangible Assets, Amortization Expense, Year Three	6,209
Finite-Lived Intangible Assets, Amortization Expense, Year Four	6,104
Finite-Lived Intangible Assets, Amortization Expense, Year Five	6,040
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	20,451
Finite-Lived Intangible Assets, Net	$ 51,319	$ 215,823