Quarterly reduction in amount of the hedged item.

No definition available.

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- Definition

Semi-annual reduction in amount of the hedged item.

+ References

No definition available.

+ Details

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- Definition

Represents the number of existing senior lenders, for whom the entity has entered into a derivative agreement to exchange variable interest cash flows with fixed interest cash flows.

+ References

No definition available.

+ Details

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Namespace Prefix:	cmn_
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- Definition

The increase (decrease) in cumulative translation adjustment before transfers included in determining net income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section 45

-Paragraph 20

-Subparagraph (b),(c)

-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900

+ Details

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- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

+ Details

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- Details

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

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

- Definition

The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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- Details

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Derivatives (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended		0 Months Ended	1 Months Ended
Derivatives (Details) (USD $)	Feb. 29, 2012 Lender	Apr. 30, 2015 contract	Apr. 30, 2014	Apr. 30, 2015 contract	Apr. 30, 2014	Aug. 08, 2012	Jan. 31, 2014
Derivatives
Number of existing senior lenders of debt, whose variable interest cash flows will be exchanged by the entity with fixed interest cash flows	1
Foreign currency forward contracts \| Designated as hedging instrument \| Fair value hedge instruments
Derivatives
Term of contracts				1 month
Number of contracts		6		6
Aggregate value of contracts		$ 14,585,000		$ 14,585,000
Term of renewed contracts				1 month
Net currency conversion gains (losses), net of tax		(12,000)	(26,000)	(61,000)	(70,000)
Interest rate swap agreements \| Designated as hedging instrument \| Cash flow hedge instruments \| Term Loan Facility
Derivatives
Borrowing initially hedged						40,000,000
Quarterly reduction in borrowings hedged						2,500,000
Interest rate swap agreements \| Designated as hedging instrument \| Cash flow hedge instruments \| Term Loan Facility \| One month LIBOR
Derivatives
Interest rate (as a percent)						0.664%
Interest rate swap agreements \| Designated as hedging instrument \| Cash flow hedge instruments \| Revolving Credit Facility
Derivatives
Borrowing initially hedged						25,000,000
Semi-annual reduction in borrowings hedged						5,000,000
Interest rate swap agreements \| Designated as hedging instrument \| Cash flow hedge instruments \| Revolving Credit Facility \| One month LIBOR
Derivatives
Interest rate (as a percent)						0.496%
Interest rate swap agreements \| Not designated as hedging instrument \| Term Loan Facility
Derivatives
Fair value of interest rate swap recognized in interest expense							$ 113,000