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Trust Investments (Components of Care trusts’ corpus) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Gain (Loss) on Securities [Line Items]
Care trusts’ corpus	$ 91,383	$ 84,218
Perpetual Care Trust Investments
Gain (Loss) on Securities [Line Items]
Preneed funeral trust investments	93,154	87,337
Obligations due to (due from) trust	(1,771)	(885)
Care trusts’ corpus, including HFS	91,383	86,452
Less: Held for sale	0	(2,234)
Care trusts’ corpus	$ 91,383	$ 84,218

X

- Definition

The total liability as of the balance sheet date from proceeds deposited into trust from the sale of cemetery property interment rights, including undistributed earnings on investments.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Care Trusts Corpus, HFS

+ References

No definition available.

+ Details

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X

- Definition

Care Trusts Corpus, Including HFS

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of undistributed income due to or from the Care Trust Corpus.

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
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Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481830/320-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

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