Summary of Significant Accounting Policies - Amortization Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 3,278	$ 3,458
Less accumulated amortization	675	474
Intangible assets subject to amortization, net	2,603	2,984
Trade names
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	3,230	3,410
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 48	$ 48