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Other Equity Matters - Preferred Share (Details) - USD ($) $ in Thousands | Aug. 30, 2021 | Nov. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2021 | Aug. 31, 2021 | Jan. 31, 2020
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Class of Stock [Line Items] |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  |  | $ 730,000 |  |
Preferred Stock, Liquidation Preference (in shares) |  |  |  |  | 29,200,000 |  |
8.50% Series A Cumulative Redeemable Perpetual Preference Shares |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  | $ 86,250 |  |  |
Preferred Stock, Liquidation Preference (in shares) |  |  |  | 3,450,000 |  |  |
Preferred stock, dividend rate, percentage |  |  |  | 8.50% |  |  |
8.00% Series B Cumulative Redeemable Perpetual Preference Shares |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  | $ 143,750 |  |  |  |
Preferred Stock, Liquidation Preference (in shares) |  |  | 5,750,000 |  |  |  |
Preferred stock, dividend rate, percentage |  |  | 8.00% |  |  |  |
7.375% Series C Cumulative Redeemable Perpetual Preference Shares |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  | $ 175,000 |  |  |  |  |
Preferred Stock, Liquidation Preference (in shares) |  | 7,000,000 |  |  |  |  |
Preferred stock, dividend rate, percentage |  | 7.375% |  |  |  |  |
6.875% Series D Cumulative Redeemable Perpetual Preference Shares |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  |  |  |  | $ 150,000
Preferred Stock, Liquidation Preference (in shares) |  |  |  |  |  |  | 6,000,000
5.75% Series E Cumulative Redeemable Perpetual Preference Shares |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  |  |  | $ 175,000 |
Preferred Stock, Liquidation Preference (in shares) |  |  |  |  |  | 7,000,000 |
Preferred stock, dividend rate, percentage | 5.75% |  |  |  |  |  |

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- Definition Preferred Stock, Liquidation Preference, Share + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
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- Definition Value of the difference between preference in liquidation and the par or stated values of the preferred shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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