Name:	ccf_DefinedContributionPensionAndOtherPostretirementPlansLineItems
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Represents the amount for each $1.00 of participant deferrals the entity may contribute.

No definition available.

Name:	ccf_DefinedContributionPlanAmountForEachDollarOfParticipantDeferralsEntityMayContribute
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Data Type:	xbrli:monetaryItemType
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Represents the base amount of participant deferrals which the entity contributions are based on.

No definition available.

Name:	ccf_DefinedContributionPlanBaseAmountOfParticipantDeferralsForEntityContributions
Namespace Prefix:	ccf_
Data Type:	xbrli:monetaryItemType
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Represents the required age to be eligible to participate in the defined contribution plan.

No definition available.

Name:	ccf_DefinedContributionPlanEligibilityAgeOfEmployee
Namespace Prefix:	ccf_
Data Type:	xbrli:durationItemType
Balance Type:	na
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Represents the minimum service required to be eligible for the defined contribution plan.

No definition available.

Name:	ccf_DefinedContributionPlanEligibilityServicePeriodMinimum
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Data Type:	xbrli:durationItemType
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Represents the first level of employee contributions (percentage of compensation) which are matched by the employer.

No definition available.

Name:	ccf_DefinedContributionPlanEmployerMatchEmployeeContributionLevelOne
Namespace Prefix:	ccf_
Data Type:	num:percentItemType
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Represents the employer matching contribution of the first level of employee contributions.

No definition available.

Name:	ccf_DefinedContributionPlanEmployerMatchLevelOne
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Represents the employer matching contribution of the second level of employee contributions, expressed in terms of percentage.

No definition available.

Name:	ccf_DefinedContributionPlanEmployerMatchLevelTwo
Namespace Prefix:	ccf_
Data Type:	num:percentItemType
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Period Type:	duration

Represents the number of defined contribution plans that the entity has.

No definition available.

Name:	ccf_DefinedContributionPlansNumber
Namespace Prefix:	ccf_
Data Type:	xbrli:integerItemType
Balance Type:	na
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The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- References

No definition available.

Name:	us-gaap_DeferredCompensationArrangementsAbstract
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- References

No definition available.

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Data Type:	xbrli:stringItemType
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Amount of cost for defined contribution plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ccf_TypeOfEmployeeAxis=ccf_NonunionEmployeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
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