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STOCKHOLDERS' EQUITY - Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 23, 2019 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Series D Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depository shares to preferred stock ratio | 2.50% |  |  |  |
Series E Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Depository shares to preferred stock ratio | 2.50% |  |  |  |
Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferred stock, authorized (in shares) |  |  | 50,000,000 |  |
Preferred stock, par value (in dollars per share) |  |  | $ 0.01 |  |
Preferred stock, liquidation preference per share (in dollars per share) |  |  | $ 1,000 |  |
Impact of preferred stock redemption |  |  | $ 3,347 | $ (568) | $ 5,093
Preferred Stock | Series D Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Impact of preferred stock redemption |  | $ 3,300 | $ 3,347 | $ (541) | $ 1,681
Outstanding shares redeemed (shares) |  |  | 93,269 | 3,360 | 18,371
Non cumulative preferred stock, dividend rate (percent) |  |  | 7.375% | 7.375% |
Preferred Stock | Series D Depository shares |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Outstanding shares redeemed (shares) |  |  | 3,730,767 | 134,410 | 734,823
Preferred Stock | Series E Depository shares |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Outstanding shares redeemed (shares) |  |  | 0 | 70,967 | 980,928
Preferred Stock | Series E Preferred Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Impact of preferred stock redemption |  |  | $ 0 | $ (27) | $ 3,412
Outstanding shares redeemed (shares) |  |  | 0 | 1,774 | 24,523
Non cumulative preferred stock, dividend rate (percent) |  |  | 7.00% | 7.00% |

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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 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=123467817&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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 5: 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=123467817&loc=d3e21484-112644 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + 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 + Details
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- Definition The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share. + References No definition available. + Details
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