Fair Value, Unrealized Gains (Losses) on Translation of Underlying Inter Company Advances, Amount

No definition available.

Name:	clc_FairValueUnrealizedGainsLossesonTranslationofUnderlyingInterCompanyAdvancesAmount
Namespace Prefix:	clc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

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

- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of other liabilities.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherLiabilitiesFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.4)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Trading Securities

-URI http://asc.fasb.org/extlink&oid=6526789

+ Details

Name:	us-gaap_TradingSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

Name:	us-gaap_UnrealizedGainLossOnDerivatives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Fair Value Measurements (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended																															0 Months Ended									3 Months Ended	6 Months Ended
	May 31, 2014	Nov. 30, 2013	May 31, 2014 Mutual fund investments - equities [Member]	Nov. 30, 2013 Mutual fund investments - equities [Member]	May 31, 2014 Mutual fund investments - bonds [Member]	Nov. 30, 2013 Mutual fund investments - bonds [Member]	May 31, 2014 Cash and Cash Equivalents [Member]	Nov. 30, 2013 Cash and Cash Equivalents [Member]	May 31, 2014 Level 1 [Member]	Nov. 30, 2013 Level 1 [Member]	May 31, 2014 Level 1 [Member] Mutual fund investments - equities [Member]	Nov. 30, 2013 Level 1 [Member] Mutual fund investments - equities [Member]	May 31, 2014 Level 1 [Member] Mutual fund investments - bonds [Member]	Nov. 30, 2013 Level 1 [Member] Mutual fund investments - bonds [Member]	May 31, 2014 Level 1 [Member] Cash and Cash Equivalents [Member]	Nov. 30, 2013 Level 1 [Member] Cash and Cash Equivalents [Member]	May 31, 2014 Level 2 [Member]	Nov. 30, 2013 Level 2 [Member]	May 31, 2014 Level 2 [Member] Mutual fund investments - equities [Member]	Nov. 30, 2013 Level 2 [Member] Mutual fund investments - equities [Member]	May 31, 2014 Level 2 [Member] Mutual fund investments - bonds [Member]	Nov. 30, 2013 Level 2 [Member] Mutual fund investments - bonds [Member]	May 31, 2014 Level 2 [Member] Cash and Cash Equivalents [Member]	Nov. 30, 2013 Level 2 [Member] Cash and Cash Equivalents [Member]	May 31, 2014 Level 3 [Member]	Nov. 30, 2013 Level 3 [Member]	May 31, 2014 Level 3 [Member] Mutual fund investments - equities [Member]	Nov. 30, 2013 Level 3 [Member] Mutual fund investments - equities [Member]	May 31, 2014 Level 3 [Member] Mutual fund investments - bonds [Member]	Nov. 30, 2013 Level 3 [Member] Mutual fund investments - bonds [Member]	May 31, 2014 Level 3 [Member] Cash and Cash Equivalents [Member]	Nov. 30, 2013 Level 3 [Member] Cash and Cash Equivalents [Member]	Dec. 29, 2010 TransWeb [Member]	Dec. 16, 2013 Air Filtrations Segment of General Electric [Member]	May 31, 2014 Estimate of Fair Value Measurement [Member]	Nov. 30, 2013 Estimate of Fair Value Measurement [Member]	May 31, 2014 Reported Value Measurement [Member]	Nov. 30, 2013 Reported Value Measurement [Member]	Dec. 16, 2013 Subsidiaries [Member] Air Filtrations Segment of General Electric [Member]	May 31, 2014 Foreign Exchange Contract [Member]	May 31, 2014 Foreign Exchange Contract [Member] Level 2 [Member]	May 31, 2014 Foreign Exchange Contract [Member] Air Filtrations Segment of General Electric [Member]	May 31, 2014 Foreign Exchange Contract [Member] Air Filtrations Segment of General Electric [Member]	Dec. 16, 2013 Foreign Exchange Contract [Member] Air Filtrations Segment of General Electric [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets	$ 953	$ 1,024	$ 521	$ 593	$ 402	$ 400	$ 30	$ 31	$ 953	$ 1,024	$ 521	$ 593	$ 402	$ 400	$ 30	$ 31	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Fair value of contract																																								234	234
Contingent earn-out, included in Other long-term liabilities																																	1,018
Discount rate																																	13.20%
Change in fair value of TransWeb contingent earn-out	0	0
Long-term debt, fair value																																			438,233	166,288	439,576	166,636
Net assets acquired																																		260,312					50,000
Derivative amount																																												50,000
Unrealized gain on contract																																										234	234
Unrealized gain on translation of underlying inter-company advances																																										$ 35	$ 1,323