Equity interest purchase option price percentage.

No definition available.

Name:	ctb_EquityInterestPurchaseOptionPricePercentage
Namespace Prefix:	ctb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity Interest Sale Option Price Percentage

+ References

No definition available.

+ Details

Name:	ctb_EquityInterestSaleOptionPricePercentage
Namespace Prefix:	ctb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ctb_MergerRelatedItemsLineItems
Namespace Prefix:	ctb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum value of the joint venture as specified in the CCT Agreement.

+ References

No definition available.

+ Details

Name:	ctb_MinimumValueOfJointVenture
Namespace Prefix:	ctb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Minority Interest Redemption Value

+ References

No definition available.

+ Details

Name:	ctb_MinorityInterestRedemptionValue
Namespace Prefix:	ctb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase in non controlling interest due to fair value measurements.

+ References

No definition available.

+ Details

Name:	ctb_NoncontrollingInterestIncreasesDueToFairValueMeasurements
Namespace Prefix:	ctb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Period In Which Option Price Will Be Exercised

+ References

No definition available.

+ Details

Name:	ctb_PeriodInWhichOptionPriceWillBeExercised
Namespace Prefix:	ctb_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds From Sale Of Investment Including Dividend Net Of Tax

+ References

No definition available.

+ Details

Name:	ctb_ProceedsFromSaleOfInvestmentIncludingDividendNetOfTax
Namespace Prefix:	ctb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of the valuation as determined by an internationally recognized valuation firm.

+ References

No definition available.

+ Details

Name:	ctb_ValuationAmount
Namespace Prefix:	ctb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1B

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4582445-111684

+ Details

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

- Definition

Carrying amount of the equity interests owned by noncontrolling shareholders, partners, or other equity holders in joint ventures included in the entity's consolidated financial statements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683

+ Details

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

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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

- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph 14

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph (16)(c)

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph 15

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph (12)(c)

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsAxis=ctb_CctAgreementMember
Namespace Prefix:
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CCT Agreements - Additional Information (Detail) (USD $)	0 Months Ended		12 Months Ended
	Nov. 30, 2014	Sep. 30, 2014	Dec. 31, 2014	Aug. 24, 2014
Merger Related Items [Line Items]
Number of days for Noncontrolling shareholder option price determined			45 days
Gain on sale of ownership interest net of tax			$ 55,704,000us-gaap_DeconsolidationGainOrLossAmount
CCT Agreement [Member]
Merger Related Items [Line Items]
Equity interest sale option price percentage	65.00%
Minimum value of joint venture	435,000,000	435,000,000
Noncontrolling interest's equity ownership percentage		35.00%
Increase in shareholders interest			152,250,000
Adjustment to the noncontrolling shareholders interest liability		0	28,285,000
Valuation amount				437,700,000
Redemption value of redeemable noncontrolling shareholder interest		153,206,000
Carrying value of redeemable noncontrolling shareholder interest		168,435,000
Proceeds from sale of ownership interest	262,000,000
Gain on sale of ownership interest net of tax	$ 55,704,000
Chengshan Group Company Ltd [Member] \| CCT Agreement [Member]
Merger Related Items [Line Items]
Purchase of equity interest	65.00%
Equity interest sale option price percentage	35.00%
Company's equity ownership percentage	65.00%
Noncontrolling interest's equity ownership percentage	35.00%