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Retirement Plans - Defined Contribution Plans (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract] |  |  |
Maximum percentage of employee compensation match by employer to employee stock ownership plan | 4.00% |  |
Employer contributions | $ 4.7 | $ 4.1 |
Maximum percentage of employer match in the form of common stock | 50.00% |  |
Shares held by the ESOP plan (shares) | 1.2 |  | 1.2

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- Definition The maximum employer's matching contribution expressed as a percentage of eligible employee compensation to the employee stock ownership plan. + References No definition available. + Details
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Data Type: | num:percentItemType
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- Definition The maximum percentage of the employer's matching contribution that can be contributed in the form of common stock for the employee stock ownership plan. + References No definition available. + Details
Name: | csl_EmployeeStockOwnershipPlanEsopPlanMaximumPercentageOfMatchAmountInFormOfCommonStock
Namespace Prefix: | csl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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