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Goodwill (Changes in Goodwill) (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2014 | Mar. 31, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Goodwill [Line Items] |  |  |  |  |
Goodwill, maximum period between step one and step two impairment tests |  |  | 3 years |  |
Impairment of goodwill | $ 1,200,000 us-gaap_GoodwillImpairmentLoss | $ 1,100,000 us-gaap_GoodwillImpairmentLoss | $ 1,180,000 us-gaap_GoodwillImpairmentLoss | $ 100,000 us-gaap_GoodwillImpairmentLoss | $ 1,100,000 us-gaap_GoodwillImpairmentLoss
Goodwill [Roll Forward] |  |  |  |  |
Goodwill at the beginning of year |  |  | 221,087,000 us-gaap_Goodwill | 218,442,000 us-gaap_Goodwill |
Increase in goodwill related to acquisitions |  |  | 37,653,000 us-gaap_GoodwillAcquiredDuringPeriod | 3,843,000 us-gaap_GoodwillAcquiredDuringPeriod |
Changes in previous estimates |  |  | 101,000 csv_GoodwillImpairmentAndChangesInPreviousEstimates | 0 csv_GoodwillImpairmentAndChangesInPreviousEstimates |
Net impairment and write-off related to divestitures |  |  | 1,197,000 csv_GoodwillWrittenOffDueToDiscontinuedOperations | 1,198,000 csv_GoodwillWrittenOffDueToDiscontinuedOperations |
Goodwill at the end of the year |  |  | 257,442,000 us-gaap_Goodwill | 221,087,000 us-gaap_Goodwill | 218,442,000 us-gaap_Goodwill
November 2013 acquisition |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill, increase (decrease) to previous estimates |  |  | $ (100,000)csv_GoodwillChangesinPreviousEstimates / us-gaap_BusinessAcquisitionAxis = csv_November2013AcquisitionMember |  |

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- Definition Goodwill - Changes in Previous Estimates + References No definition available. + Details
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- Definition Goodwill, Impairment And Changes In Previous Estimates + References No definition available. + Details
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- Definition Goodwill, Maximum Period Between Step One and Step Two Impairment Tests + References No definition available. + Details
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- Definition Goodwill, Written Off Due To Discontinued Operations + References No definition available. + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Details
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