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Preneed Activities Investment Related Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2021
Preneed Activities [Abstract] |  |  |
Deposits to trust | $ 429,307 | $ 534,586 | $ 519,023
Withdrawals | 424,986 | 507,872 | 477,443
Payments to Acquire Debt Securities, Available-for-sale | 2,147,935 | 1,647,032 | 1,823,267
Proceeds from Sale of Debt Securities, Available-for-sale | 1,994,684 | 1,518,779 | 1,744,618
Debt Securities, Available-for-sale, Realized Gain | 418,851 | 332,738 | 584,863
Debt Securities, Available-for-sale, Realized Gain (Loss) | $ 262,974 | $ 201,173 | $ 91,715

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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