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v3.20.2

Shareholders' Equity (Details) |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 27, 2020 | May 05, 2020 $ / shares shares | Jun. 30, 2020 $ / shares | Jun. 30, 2019 $ / shares | Jun. 30, 2020 $ / shares shares | Jun. 30, 2019 $ / shares | Dec. 31, 2019 $ / shares shares | Dec. 31, 2018 $ / shares shares
Common Shares |  |  |  |  |  |  |  |
Dividends to common shareholders (in dollars per share) |  |  | $ 0.01 | $ 0.06 | $ 0.01 | $ 0.02 |  |
Preferred stock, rate (as a percent) |  |  |  |  | 6.00% |  | 6.00% |
Preferred stock, par value (in dollars per share) |  |  | 0.001 |  | $ 0.001 |  | $ 0.001 |
Preferred stock, liquidation preference (in dollars per share) |  |  | 50 |  | 50 |  | 50 |
Cash dividend per mandatory convertible preferred shares (in dollars per share) |  |  | 0.75 | $ 0.64 | 1.50 | $ 1.50 |  |
Preferred Stock, Par or Stated Value Per Share |  |  | $ 0.001 |  | $ 0.001 |  | $ 0.001 |
Minimum percentage beneficial ownership to trigger rights exercise (as a percent) | 10 | 4.9 |  |  |  |  |  |
Percentage discount that a rights holder is entitled to when purchasing additional shares (as a percent) |  | 50 |  |  |  |  |  |
Price per share at which the Rights may be redeemed | shares |  | 0.01 |  |  |  |  |  |
Exchange ratio after rights trigger | shares |  | 1 |  |  |  |  |  |
Specific Shareholder [Member] |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Minimum percentage beneficial ownership to trigger rights exercise (as a percent) |  | 10 |  |  |  |  |  |
Acquiring Company [Member] |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Percentage discount that a rights holder is entitled to when purchasing additional shares (as a percent) |  | 50 |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Additional ownership percentage acquired for right trigger |  | 0.50% |  |  |  |  |  |
Mandatory Convertible Preferred Shares |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Preferred shares, shares issued | shares |  |  |  |  |  |  |  | 5,750,000
Preferred stock, rate (as a percent) |  |  |  |  |  |  |  | 6.00%
Preferred stock, par value (in dollars per share) |  |  |  |  |  |  |  | $ 0.001
Preferred stock, liquidation preference (in dollars per share) |  |  |  |  |  |  |  | 50
Shares repurchased | shares |  |  |  |  | 4,900,000 |  | 5,600,000 |
Preferred Stock, Par or Stated Value Per Share |  |  |  |  |  |  |  | $ 0.001
Series B Preferred Stock |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Preferred stock, par value (in dollars per share) |  | $ 0.001 |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares |  | 1 |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  | 0.001 |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share |  | $ 0.001 |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  | $ 58.08 |  |  |  |  |  |
Common Stock | Minimum |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Conversion ratio | shares |  |  |  |  |  |  |  | 0.1144
Common Stock | Maximum |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Conversion ratio | shares |  |  |  |  |  |  |  | 0.1372
Common Stock | Mandatory Convertible Preferred Shares |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Number of consecutive trading days to calculate average share price of common stock |  |  |  |  |  |  |  | 20 days
Common Stock | Mandatory Convertible Preferred Shares | Minimum |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Conversion ratio | shares |  |  |  |  |  |  |  | 0.1075
Common Stock | Mandatory Convertible Preferred Shares | Maximum |  |  |  |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Conversion ratio | shares |  |  |  |  |  |  |  | 0.1290

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