Debt - Valuation Assumptions (Details)	Sep. 30, 2021 year
Volatility
Debt Instrument [Line Items]
Equity component valuation input	0.9801
Risk-free interest rate
Debt Instrument [Line Items]
Equity component valuation input	0.0158
Expected life (in years)
Debt Instrument [Line Items]
Equity component valuation input	7
Dividend yield
Debt Instrument [Line Items]
Equity component valuation input	0