Intangible Assets (Assumption on Impairment) (Details)	Jun. 30, 2020
Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Alternative Investment, Measurement Input	0.080
Measurement Input, Long-term Revenue Growth Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Alternative Investment, Measurement Input	(0.0075)
Minimum | Measurement Input, Price Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Alternative Investment, Measurement Input	0.20
Maximum | Measurement Input, Price Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Alternative Investment, Measurement Input	0.30