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Summary of Series B Convertible Preferred Stock and Accretion of Dividend (Detail) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Stockholders Equity [Line Items] |  |
Dividends earned on Series B preferred stock | $ 248 | $ 313
Series B Convertible Preferred Stock |  |
Stockholders Equity [Line Items] |  |
Balance at beginning of period | 26,589 | 25,323
Dividends earned on Series B preferred stock | 248 | 313
Balance at end of period | $ 26,837 | $ 25,636
Number of shares at beginning of period | 6,647 | 6,331
Cumulative dividends on Series B convertible preferred stock | 62 | 78
Number of shares at end of period | 6,709 | 6,409

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- Definition Value of all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by shareholders, which is net of related treasury stock. May be all or a portion of the number of preferred shares authorized. These shares represent the ownership interest of the preferred shareholders. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(16)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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