Stockholders' Equity and Earnings per Share - Optional Subscription (Details)	Jun. 30, 2021
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	23.0
Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	7.4
Expected life (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	3.38
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.5