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v3.21.2

Shareholders Equity (Details) |  |  |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 11, 2021 shares | May 03, 2021 shares | May 27, 2020 | May 05, 2020 $ / shares shares | Apr. 20, 2020 USD ($) $ / shares shares | Jun. 30, 2020 $ / shares | Jun. 30, 2021 USD ($) $ / shares shares | Jun. 30, 2020 $ / shares | Dec. 31, 2020 $ / shares shares | Dec. 31, 2018 $ / shares shares | May 27, 2021 USD ($) item $ / shares shares | Apr. 24, 2020 shares | Apr. 19, 2020 $ / shares shares | Jan. 31, 2017
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock split ratio |  |  |  |  | 50 |  |  |  |  |  |  |  |  |
Common shares, shares authorized |  |  |  |  | 16,000,000 |  | 32,000,000 |  | 32,000,000 |  |  | 32,000,000 | 800,000,000 |
Fractional common shares issued |  |  |  |  | 0 |  |  |  |  |  |  |  |  |
Common shares, par value (in dollars per share) | $ / shares |  |  |  |  | $ 0.05 |  | $ 0.05 |  | $ 0.05 |  |  |  | $ 0.001 |
Common stock shares authorized increase percentage |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Common stock shares authorized amount | $ |  |  |  |  | $ 1,600,000 |  |  |  |  |  |  |  |  |
Preferred stock, rate (as a percent) |  |  |  |  |  |  | 6.00% |  | 6.00% |  |  |  |  |
Preferred shares, par value (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.001 |  | $ 0.001 |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) | $ / shares |  |  |  |  |  |  | 50 |  | $ 50 |  |  |  |  |
Preferred Stock, Dividends Per Share, Declared | $ / shares |  |  |  |  |  | $ 0.75 | $ 0.75 | $ 1.50 |  |  |  |  |  |
Number of right share for each outstanding common share |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
Number of warrants received per common share held | 0.40 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants issued | 3,236,430 |  |  |  |  |  |  |  |  |  |  |  |  |
Gain for the decrease in liability | $ |  |  |  |  |  |  | $ 1,700,000 |  |  |  |  |  |  |
Exercise price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 166.66667 |  |  |
Number of additional securities |  |  |  |  |  |  |  |  |  |  | 0.333 |  |  |
Multiplying factor for exercise of warrants | item |  |  |  |  |  |  |  |  |  |  | 3 |  |  |
Percentage volume weighted average price of stock times factor must exceed sum of volume weighted average prices of second, third and fourth days before exercise |  |  |  |  |  |  |  |  |  |  | 6.00% |  |  |
Conversion price percentage |  |  |  |  |  |  |  |  |  |  | 95.00% |  |  |
Fair value of the Warrants | $ |  |  |  |  |  |  | $ 1,000,000.0 |  |  |  | $ 2,700,000 |  |  |
Minimum percentage beneficial ownership to trigger rights exercise (as a percent) |  |  | 10.00% | 4.90% |  |  |  |  |  |  |  |  |  |
Percentage discount that a rights holder is entitled to when purchasing additional shares (as a percent) |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |
Price per share at which the Rights may be redeemed |  |  |  | 0.01 |  |  |  |  |  |  |  |  |  |
Exchange ratio after rights trigger |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Preferred stock, shares outstanding |  |  |  |  |  |  | 0 |  | 4,870,000 |  |  |  |  |
5.10% senior notes due September 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 5.10% |  |  |  |  |  |  |
0.75% senior exchangeable notes due January 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 0.75% |  |  |  |  |  |  | 0.75%
5.75% senior notes due February 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 5.75% |  |  |  |  |  |  |
7.25% senior notes due January 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 7.25% |  |  |  |  |  |  |
Specific Shareholder |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum percentage beneficial ownership to trigger rights exercise (as a percent) |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |
Acquiring Company |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage discount that a rights holder is entitled to when purchasing additional shares (as a percent) |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock split ratio |  |  |  |  | 15 |  |  |  |  |  |  |  |  |
Additional ownership percentage acquired for right trigger |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reverse stock split ratio |  |  |  |  | 50 |  |  |  |  |  |  |  |  |
Mandatory Convertible Preferred Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares issued |  |  |  |  |  |  |  |  |  | 5,750,000 |  |  |  |
Preferred stock, rate (as a percent) |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |
Preferred shares, par value (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.001 |  |  |  |
Preferred stock, liquidation preference (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 50 |  |  |  |
Preferred stock, shares outstanding |  |  |  |  |  |  |  |  | 4,900,000 |  |  |  |  |
Series B Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred shares, par value (in dollars per share) | $ / shares |  |  |  | $ 0.001 |  |  |  |  |  |  |  |  |  |
Number of right share for each outstanding common share |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Number of shares each right entitled to purchase |  |  |  | 0.001 |  |  |  |  |  |  |  |  |  |
Exercise price (in dollars per share) | $ / shares |  |  |  | $ 58.08 |  |  |  |  |  |  |  |  |  |
Common Stock | Mandatory Convertible Preferred Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  | 668,000 |  |  |  |  |  |  |  |  |  |  |  |

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