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Preneed Cemetery Activities Investment Related Activities (Details) - Cemetery [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Investment related activities [Line Items] |  |  |
Deposits to trust | $ 158,114 | $ 153,252 | $ 129,581
Withdrawals | 144,308 | 163,732 | 150,064
Purchases of available-for-sale securities | 656,452 | 625,648 | 1,786,800
Sales of available-for-sale securities | 631,440 | 628,484 | 1,842,417
Realized gains from sales of available-for-sale securities | 53,253 | 51,510 | 271,507
Realized losses from sales of available-for-sale securities | $ (60,795) | $ (40,092) | $ (138,473)

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26853-111562 + Details
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