Acquisition Acquisition (Finite-Lived Intangible Assets Acquired as Part of Business Combination) (Details) - Northwest Logic $ in Thousands	Aug. 23, 2019 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Identified intangible assets assumed	$ 8,800
Existing technology
Acquired Finite-Lived Intangible Assets [Line Items]
Identified intangible assets assumed	$ 8,100
Identified intangible assets assumed, weighted average useful life	5 years
Customer contracts and contractual relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Identified intangible assets assumed	$ 400
Identified intangible assets assumed, weighted average useful life	2 years
Order or Production Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identified intangible assets assumed	$ 300
Identified intangible assets assumed, weighted average useful life	6 months