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Schedule I - Condensed Financial Information of Registrant (Parent Company Only) - Condensed Statements of Financial Condition (Additional Information) (Details) - $ / shares | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |
Preferred stock, par value (in usd per share) | $ 0.01 | $ 0.01 |
Preferred stock, shares authorized | 15,000,000 | 15,000,000 |
Common stock, par value (in usd per share) | $ 0.01 | $ 0.01 |
Common stock, shares authorized | 500,000,000 | 500,000,000 |
Common stock, shares issued | 112,766,091 | 112,766,091 |
Common stock held by subsidiaries, shares | 25,340,287 | 26,814,213 |
Series A Preferred Stock |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |
Preferred stock, shares issued | 0 | 0 |
Preferred stock, shares outstanding | 0 | 0 | 0
Series B Preferred Stock |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |
Preferred stock, shares issued | 0 | 0 |
Preferred stock, shares outstanding | 0 | 0 | 0
Parent Company |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |
Preferred stock, par value (in usd per share) | $ 0.01 | $ 0.01 |
Preferred stock, shares authorized | 15,000,000 | 15,000,000 |
Common stock, par value (in usd per share) | $ 0.01 | $ 0.01 |
Common stock, shares authorized | 500,000,000 | 500,000,000 |
Common stock, shares issued | 112,766,091 | 112,766,091 |
Common stock held by subsidiaries, shares | 25,340,287 | 26,814,213 |
Parent Company | Series A Preferred Stock |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |
Preferred stock, shares issued | 0 | 0 |
Preferred stock, shares outstanding | 0 | 0 |
Parent Company | Series B Preferred Stock |  |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |  |
Preferred stock, shares issued | 0 | 0 |
Preferred stock, shares outstanding | 0 | 0 |

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- Definition Number of shares held by subsidiary, which are purchased for the purpose of granting the shares to senior employees as part of an employee stock option plan approved by the Entity's Board of Directors. + 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 04 -Paragraph a -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481231/810-10-45-11 + Details
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