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Commitments and Contingencies - Leases (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($) item | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract] |  |  |
Number of leases that require rent to be paid based on contingent events | item | 0 |  |
Rent expense | $ | $ 30.2 | $ 27.4 | $ 25.9

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- Definition Represents the number of leases that require rent to be paid based on contingent events. + References No definition available. + Details
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Namespace Prefix: | csl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
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