v3.5.0.2

Contingencies (Details) - TransWeb [Member] $ in Thousands | Mar. 07, 2016 USD ($) | Apr. 21, 2014 USD ($) Juror
--- | --- | ---
Loss Contingencies [Line Items] |  |
Number of jurors | Juror |  | 6
Gain contingency not yet recognized |  | $ 26,147
Settled Litigation [Member] |  |
Loss Contingencies [Line Items] |  |
Gain contingency not yet recognized | $ 27,250 |

X
- Definition Loss Contingency, Number of Jurors + References No definition available. + Details
Name: | clc_LossContingencyNumberofJurors
Namespace Prefix: | clc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=clc_TranswebMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_SettledLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |