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Income Taxes - Changes in The Valuation Allowance (Parenthetical) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($)
Deferred Tax Assets Valuation Allowance [Member] |
Income Taxes Changes in Valuation Allowance [Abstract] |
Deductions in valuation allowances due to reduction in tax rate | $ 1.8

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- Definition Effect of Tax Cuts and Jobs Act of 2017 deductions in valuation allowances and reserves. + References No definition available. + Details
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Namespace Prefix: | capl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Abstract stands for income taxes changes in valuation allowance. + References No definition available. + Details
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Namespace Prefix: | capl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |