Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 9,000	$ 9,800	$ 17,953	$ 20,667
Intangible assets, amortization expense
Remaining of 2019	18,000		18,000
2020	35,300		35,300
2021	34,100		34,100
2022	32,300		32,300
2023	$ 29,200		$ 29,200