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CAPITAL STOCK - Schedule of Preferred Stock (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Class of Stock [Line Items] |  |  |
Shares Authorized (in shares) | 63,500,000 | 85,150,000 |
Shares Issued (in shares) | 63,500,000 | 63,500,000 |
Shares Outstanding (in shares) | 63,500,000 | 63,500,000 |
Carrying Value | $ 1,536,569 | $ 1,536,569 | [1]
Series D |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized (in shares) | 0 | 18,400,000 |
Shares Issued (in shares) | 0 | 0 |
Shares Outstanding (in shares) | 0 | 0 |
Carrying Value | $ 0 | $ 0 |
Contractual Rate | 7.50% |  |
Series F |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized (in shares) | 28,800,000 | 28,800,000 |
Shares Issued (in shares) | 28,800,000 | 28,800,000 |
Shares Outstanding (in shares) | 28,800,000 | 28,800,000 |
Carrying Value | $ 696,910 | $ 696,910 |
Contractual Rate | 6.95% |  |
Floating Annual Rate | 4.993% |  |
Series G |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized (in shares) | 17,000,000 | 19,550,000 |
Shares Issued (in shares) | 17,000,000 | 17,000,000 |
Shares Outstanding (in shares) | 17,000,000 | 17,000,000 |
Carrying Value | $ 411,335 | $ 411,335 |
Contractual Rate | 6.50% |  |
Floating Annual Rate | 4.172% |  |
Series I |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized (in shares) | 17,700,000 | 18,400,000 |
Shares Issued (in shares) | 17,700,000 | 17,700,000 |
Shares Outstanding (in shares) | 17,700,000 | 17,700,000 |
Carrying Value | $ 428,324 | $ 428,324 |
Contractual Rate | 6.75% |  |
Floating Annual Rate | 4.989% |  |
[1] | (1)Derived from the audited consolidated financial statements at December 31, 2020.

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- Definition The percentage rate used to calculate dividend payments on preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
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