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Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Oct. 29, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Preferred stock, liquidation preference (in dollars per share) |  | $ 1,000 | $ 0 |
Net proceeds from issuance of preferred stock |  | $ 192,878 | $ 0 | $ 0
Preferred stock, shares authorized (in shares) |  | 10,000,000 | 0 |
Preferred stock, shares issued (in shares) |  | 200,000 | 0 |
Depositary Shares |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Stock Issued During Period, Equivalent of Preferred Shares, Percent | 2.50% |  |  |
Depositary Shares |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Stock issued (in shares) | 8,000,000.0 |  |  |
Preferred stock, liquidation preference (in dollars per share) | $ 25.00 |  |  |
Preferred stock, shares authorized (in shares) | 200,000 |  |  |
Preferred stock, shares issued (in shares) | 200,000 |  |  |
Series A Preferred Stock |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Preferred Stock, Dividend Rate, Percentage | 5.125% |  |  |
Preferred stock, liquidation preference (in dollars per share) | $ 1,000 |  |  |
Gross Proceeds from Issuance of Preferred Stock and Preference Stock | $ 200,000 |  |  |
Net proceeds from issuance of preferred stock | $ 192,900 |  |  |

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 + Details
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