Other Financial Information - (Property and Equipment, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property and equipment	$ 24,469	$ 64,109
Less - accumulated depreciation	(13,024)	(35,683)
Property, Plant and Equipment, Net	11,445	28,426
Machinery and Equipment [Member]
Property and equipment	9,946	35,723
Leasehold Improvements [Member]
Property and equipment	9,088	22,276
Computer hardware [Member]
Property and equipment	4,987	4,763
Construction in Progress [Member]
Property and equipment	$ 448	$ 1,347

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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