Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and intangible asset impairment	$ 0	$ (82,200,000)
Non-cash goodwill and impairment charge		82,200,000
Amortization of intangible assets	300,000	$ 300,000	$ 800,000
Future amortization expense, 2020	300,000
Future amortization expense, 2021	300,000
Future amortization expense, 2022	$ 300,000