Bank Loan Issued to Business Associate, Partially Guaranteed by Parent

No definition available.

Name:	chh_BankLoanIssuedToBusinessAssociatePartiallyGuaranteedByParent
Namespace Prefix:	chh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Bank Loan Issued to Business Associate, Percentage Guaranteed by Parent

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Conditional Loan Committment

+ References

No definition available.

+ Details

Name:	chh_ConditionalLoanCommittment
Namespace Prefix:	chh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Joint Venture Agreement, Contingent Consideration, Potential Cash Payment

+ References

No definition available.

+ Details

Name:	chh_JointVentureAgreementContingentConsiderationPotentialCashPayment
Namespace Prefix:	chh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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

- Definition

Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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

Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified		3 Months Ended
	Oct. 09, 2012	Mar. 31, 2013 Scenario, Forecast [Member]	Mar. 31, 2013 Forgivable Notes Receivable [Member]	Mar. 31, 2013 Forgivable Notes Receivable [Member] Scenario, Forecast [Member]	Mar. 31, 2013 Financial Guarantee [Member] Scenario, Forecast [Member]
Bank Loan Issued to Business Associate, Partially Guaranteed by Parent	$ 18.0
Bank Loan Issued to Business Associate, Percentage Guaranteed by Parent	25.00%
Other Commitment			11.7
Other Commitment, Due in Next Twelve Months				6.6
Joint Venture Agreement, Contingent Consideration, Potential Cash Payment					3.0
Equity Method Investment, Ownership Percentage					42.50%
Conditional Loan Committment		$ 4.6