Intangible Assets and Goodwill - Intangible Assets Subject to Amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 10,192	$ 10,192
Accumulated Amortization	(10,192)	(10,192)
Acquired Technology
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,483	1,483
Accumulated Amortization	(1,483)	(1,483)
Distributor and Provider Networks
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,709	8,709
Accumulated Amortization	$ (8,709)	$ (8,709)