XML 46 R67.htm IDEA: XBRL DOCUMENT v2.4.0.6

Stock-Based Compensation (Details 6) (Deferred Performance Shares, USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Deferred Performance Shares
Deferred Compensation Plan
Number of common stock deferred into the rabbi trust (in shares)	267,087
Increase in rabbi trust deferred compensation liability	$ (3.7)

X

- Definition

Number of shares of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees. Shares have been earned but not distributed.

+ References

No definition available.

+ Details

Name:	cog_CommonStockSharesHeldInEmployeeTrustSharesEarnedButNotDistributed
Namespace Prefix:	cog_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	cog_DeferredCompensationPlanAbstract
Namespace Prefix:	cog_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration