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v3.21.2

Equity and Redeemable Preferred Stock - Narrative (Details) $ / shares in Units, $ in Millions |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2021 d $ / shares | Mar. 31, 2021 $ / shares shares | Jul. 31, 2020 shares | Sep. 30, 2021 USD ($) | Mar. 31, 2021 $ / shares | Jul. 02, 2020 $ / shares
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, accretion of redemption value, period |  |  |  |  | 10 years |
Dividends | $ |  |  |  | $ 10 |  |
Series A Mandatory Convertible Preferred Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Accrued preferred stock dividends | $ |  |  |  | $ 7 |  |
Series A Mandatory Convertible Preferred Stock | Underwritten Public Offering |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Sale of stock, shares issued (in shares) |  |  | 2,300,000 |  |  |
Preferred stock, dividend rate, percentage |  |  | 6.00% |  |  |
Preferred stock, par value (in usd per share) | $ / shares |  |  |  |  |  | $ 0
Series A Mandatory Convertible Preferred Stock | Underwritten Public Offering | Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Convertible preferred stock, shares issued upon conversion (in shares) |  |  | 4.6512 |  |  |
Series A Mandatory Convertible Preferred Stock | Underwritten Public Offering | Minimum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Convertible preferred stock, shares issued upon conversion (in shares) |  |  | 3.8760 |  |  |
Series B-1 Convertible Preferred Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, par value (in usd per share) | $ / shares | $ 0 | $ 0 |  |  | $ 0 |
Trading days | d | 20 |  |  |  |  |
Shares issued (in shares) |  | 75,000 |  |  |  |
Debt instrument conversion, conversion price per share (in usd per share) | $ / shares | $ 85 | $ 85 |  |  | $ 85 |
Common stock , conversion, if volume weighted average price, percentage exceeds applicable conversion price | 150.00% |  |  |  |  |
Consecutive trading days | d | 30 |  |  |  |  |
Default on payment obligation, cure period | 30 days |  |  |  |  |
Default on payment obligation, dividend rate, quarterly increase, percentage | 2.00% |  |  |  |  |
Series B-1 Convertible Preferred Stock | Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, default on payment obligation, dividend rate, percentage | 14.00% |  |  |  |  |
Series B-1 Convertible Preferred Stock | Minimum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, default on payment obligation, dividend rate, percentage | 8.00% |  |  |  |  |

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