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v3.21.1

Subsequent Event (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | Apr. 19, 2021 | Mar. 31, 2021 | Dec. 31, 2020
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Subsequent Event [Line Items] |  |  |
Preferred Stock, Par or Stated Value Per Share |  | $ 0.01 | $ 0.01
Subsequent Event | Series C Preferred Stock |  |  |
Subsequent Event [Line Items] |  |  |
Undivided Beneficial Ownership Interest, Percent | 10.00% |  |
Preferred Stock, Par or Stated Value Per Share | $ 0.01 |  |
Preferred Stock, Liquidation Preference Per Share | $ 1,000 |  |
Subsequent Event | Series A Corporate Units |  |  |
Subsequent Event [Line Items] |  |  |
Stock Issued During Period, Shares, New Issues | 8,625 |  |
Shares Issued, Price Per Share | $ 100 |  |
Net Proceeds from Sale | $ 835.5 |  |
Corporate Units Contract Annual Rate | 7.75% |  |

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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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