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v3.23.2

Changes in Level 3 Investments Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Fair Value Disclosures [Abstract] |  |  |  |
Beginning balance | $ 4,335 | $ 4,288 | $ 4,571 | $ 2,769
Included in accumulated other comprehensive income | (3) | 23 | 7 | 15
Included in earnings attributable to realized gains / losses | (113) | (102) | (172) | (170)
Transfers into level 3 | 0 | 607 | 0 | 857
Amortization of bond premium and discount, net | 2 | 2 | 4 | 2
Purchases | 39 | 55 | 113 | 1,479
Sales | (473) | (523) | (736) | (602)
Ending balance | 3,787 | 4,350 | 3,787 | 4,350
Gains (losses) included in earnings attributable to the change in unrealized gains (losses) related to assets still held at end of reporting period | $ (103) | $ (9) | $ (162) | $ (14)

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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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