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Preneed Activities Investment Related Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Investment related activities [Line Items] |  |  |  |
Document Period End Date |  |  | Sep. 30, 2019 |
Deposits | $ 104,964 | $ 96,539 | $ 318,321 | $ 296,651
Withdrawals | 100,194 | 97,525 | 324,230 | 318,818
Purchases of available-for-sale securities | 545,926 | 265,125 | 1,236,839 | 1,273,683
Sales of available-for-sale securities | 546,172 | 295,983 | 1,109,589 | 1,331,981
Realized gains on investments | 71,531 | 70,095 | 169,812 | 216,241
Realized losses on investments | $ (39,176) | $ (20,358) | $ (88,058) | $ (50,210)

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- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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