| **Goodwill and Acquired Intangible Assets - Acquired Intangibles by Segment (Details) (USD $)In Thousands, unless otherwise specified** | Feb. 28, 2015                                                                                                                                                                                                                                       | Nov. 29, 2014                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------|
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Trademarks - indefinite lived                                                                                                           | $ 76,169us-gaap_IndefiniteLivedTrademarks                                                                                                                                                                                                           |                                                |
| Intangible asset, net - finite lived                                                                                                    | 273,658us-gaap_FiniteLivedIntangibleAssetsNet                                                                                                                                                                                                       |                                                |
| Acquired intangible assets, less accumulated amortization                                                                               | 349,827us-gaap_IntangibleAssetsNetExcludingGoodwill                                                                                                                                                                                                 | 347,578us-gaap_IntangibleAssetsNetExcludingGoodwill |
| Trademarks [Member]                                                                                                                     |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 849us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember                                                                                                                          |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (488)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember                                                                                                      |                                                |
| Intangible asset, net - finite lived                                                                                                    | 361us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember                                                                                                                            |                                                |
| Customer relationships [Member]                                                                                                         |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 270,651us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember                                                                                                           |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (42,460)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember                                                                                        |                                                |
| Intangible asset, net - finite lived                                                                                                    | 228,191us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember                                                                                                             |                                                |
| Other Acquired Intangibles [Member]                                                                                                     |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 72,059us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember                                                                                                            |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (26,953)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember                                                                                        |                                                |
| Intangible asset, net - finite lived                                                                                                    | 45,106us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember                                                                                                              |                                                |
| Engine/Mobile Filtration [Member]                                                                                                       |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Trademarks - indefinite lived                                                                                                           | 784us-gaap_IndefiniteLivedTrademarks/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                                                                                                                    |                                                |
| Intangible asset, net - finite lived                                                                                                    | 139,028us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                                                                                                           |                                                |
| Acquired intangible assets, less accumulated amortization                                                                               | 139,812us-gaap_IntangibleAssetsNetExcludingGoodwill/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                                                                                                     |                                                |
| Engine/Mobile Filtration [Member] | Trademarks [Member]                                                                                 |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 281us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                              |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (122)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                          |                                                |
| Intangible asset, net - finite lived                                                                                                    | 159us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                                |                                                |
| Engine/Mobile Filtration [Member] | Customer relationships [Member]                                                                     |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 139,537us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                               |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (10,752)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember            |                                                |
| Intangible asset, net - finite lived                                                                                                    | 128,785us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                 |                                                |
| Engine/Mobile Filtration [Member] | Other Acquired Intangibles [Member]                                                                 |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 11,244us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (1,160)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember             |                                                |
| Intangible asset, net - finite lived                                                                                                    | 10,084us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_EngineandMobileFiltrationMember                                  |                                                |
| Industrial/Environmental Filtration [Member]                                                                                            |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Trademarks - indefinite lived                                                                                                           | 75,385us-gaap_IndefiniteLivedTrademarks/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                                                                                                                      |                                                |
| Intangible asset, net - finite lived                                                                                                    | 134,630us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                                                                                                                |                                                |
| Acquired intangible assets, less accumulated amortization                                                                               | 210,015us-gaap_IntangibleAssetsNetExcludingGoodwill/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                                                                                                          |                                                |
| Industrial/Environmental Filtration [Member] | Trademarks [Member]                                                                      |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 568us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                                   |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (366)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember               |                                                |
| Intangible asset, net - finite lived                                                                                                    | 202us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                                     |                                                |
| Industrial/Environmental Filtration [Member] | Customer relationships [Member]                                                          |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 131,114us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                    |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (31,708)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember |                                                |
| Intangible asset, net - finite lived                                                                                                    | 99,406us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                       |                                                |
| Industrial/Environmental Filtration [Member] | Other Acquired Intangibles [Member]                                                      |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 60,815us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                     |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | (25,793)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember |                                                |
| Intangible asset, net - finite lived                                                                                                    | 35,022us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_IndustrialandEnvironmentalFiltrationMember                       |                                                |
| Packaging [Member]                                                                                                                      |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Trademarks - indefinite lived                                                                                                           | 0us-gaap_IndefiniteLivedTrademarks/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                                                                                                                      |                                                |
| Intangible asset, net - finite lived                                                                                                    | 0us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                                                                                                                 |                                                |
| Acquired intangible assets, less accumulated amortization                                                                               | 0us-gaap_IntangibleAssetsNetExcludingGoodwill/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                                                                                                           |                                                |
| Packaging [Member] | Trademarks [Member]                                                                                                |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 0us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                                |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | 0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                              |                                                |
| Intangible asset, net - finite lived                                                                                                    | 0us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_TrademarksMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                                  |                                                |
| Packaging [Member] | Customer relationships [Member]                                                                                    |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 0us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                     |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | 0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                   |                                                |
| Intangible asset, net - finite lived                                                                                                    | 0us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_CustomerRelationshipsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                       |                                                |
| Packaging [Member] | Other Acquired Intangibles [Member]                                                                                |                                                                                                                                                                                                                                                |                                                |
| **Finite-Lived Intangible Assets [Line Items]**                                                                                         |                                                                                                                                                                                                                                                |                                                |
| Intangible asset, gross - finite lived                                                                                                  | 0us-gaap_FiniteLivedIntangibleAssetsGross/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                     |                                                |
| Accumulated amortization - finite lived intangible asset                                                                                | 0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                   |                                                |
| Intangible asset, net - finite lived                                                                                                    | $ 0us-gaap_FiniteLivedIntangibleAssetsNet/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis= us-gaap_OtherIntangibleAssetsMember/ us-gaap_StatementBusinessSegmentsAxis= clc_PackagingMember                                                     |                                                |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
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| - Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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| - Definition
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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