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Earnings Per Share - Convertible Note Hedge Transactions (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended
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Sep. 30, 2021 | Jun. 30, 2021
Debt Instrument [Line Items] |  |
Derivative, notional amount |  | $ 84.1
Treasury stock, shares, acquired |  | 3.7
Convertible Debt Securities |  |
Debt Instrument [Line Items] |  |
Common stock, conversion price (in dollars per share) | $ 126.00 | $ 126.00

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