Net Loss per Share (Narrative) (Details) - Convertible Debt		1 Months Ended
Dec. 31, 2020	Mar. 31, 2019
2024 Notes
Debt Instrument [Line Items]
Conversion ratio		0.0259182
2026 Notes
Debt Instrument [Line Items]
Conversion ratio	0.0132933

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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