Fair Value Measurements Schedule Of Fair Value Of Assets (Details) - Fair value, measurements, recurring - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value Measurements [Line Items]
Assets measured at fair value	$ 68,959	$ 67,850
Money market funds \| Cash and cash equivalents
Fair Value Measurements [Line Items]
Money market funds, included in cash and cash equivalents	50,056	50,001
Money market funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	1,684	1,307
Mutual funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	17,219	16,542
Level 1
Fair Value Measurements [Line Items]
Assets measured at fair value	17,219	16,542
Level 1 \| Money market funds \| Cash and cash equivalents
Fair Value Measurements [Line Items]
Money market funds, included in cash and cash equivalents	0	0
Level 1 \| Money market funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	0	0
Level 1 \| Mutual funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	17,219	16,542
Level 2
Fair Value Measurements [Line Items]
Assets measured at fair value	51,740	51,308
Level 2 \| Money market funds \| Cash and cash equivalents
Fair Value Measurements [Line Items]
Money market funds, included in cash and cash equivalents	50,056	50,001
Level 2 \| Money market funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	1,684	1,307
Level 2 \| Mutual funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	0	0
Level 3
Fair Value Measurements [Line Items]
Assets measured at fair value	0	0
Level 3 \| Money market funds \| Cash and cash equivalents
Fair Value Measurements [Line Items]
Money market funds, included in cash and cash equivalents	0	0
Level 3 \| Money market funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	0	0
Level 3 \| Mutual funds \| Investments, employee benefit plans, at fair value
Fair Value Measurements [Line Items]
Mutual funds and money market funds, fair value	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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

- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

+ Details

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

- Definition

Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Section 35
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=64937038&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Assets
-URI http://asc.fasb.org/extlink&oid=6749337

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Assets
-URI http://asc.fasb.org/extlink&oid=6520858

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_CashAndCashEquivalentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_InvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=chh_MutualFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: