XML 122 R58.htm IDEA: XBRL DOCUMENT v2.4.1.9

Goodwill and Other Intangible Assets, Net - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Additions to goodwill	$ 51,900,000cbz_BusinessAcquisitionAdditionsToGoodwillAmount	$ 9,300,000cbz_BusinessAcquisitionAdditionsToGoodwillAmount
Decrease to goodwill resulting from business divestiture	1,537,000us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Finite-Lived Intangible Asset, Useful Life	8 years 4 months 24 days
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Client Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining weighted average amortization period remaining for total intangible assets	8 years 2 months 12 days
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	11 years 3 months 18 days
Other Intangible Assets [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Other Intangible Assets [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Financial Services [Member]
Finite-Lived Intangible Assets [Line Items]
Additions to goodwill	9,300,000cbz_BusinessAcquisitionAdditionsToGoodwillAmount / us-gaap_StatementBusinessSegmentsAxis = cbz_FinancialServicesMember	1,400,000cbz_BusinessAcquisitionAdditionsToGoodwillAmount / us-gaap_StatementBusinessSegmentsAxis = cbz_FinancialServicesMember
Number of business divested	1cbz_BusinessDivestedNumber / us-gaap_StatementBusinessSegmentsAxis = cbz_FinancialServicesMember	0cbz_BusinessDivestedNumber / us-gaap_StatementBusinessSegmentsAxis = cbz_FinancialServicesMember
Decrease to goodwill resulting from business divestiture	1,537,000us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_StatementBusinessSegmentsAxis = cbz_FinancialServicesMember
Employee Services [Member]
Finite-Lived Intangible Assets [Line Items]
Additions to goodwill	$ 42,600,000cbz_BusinessAcquisitionAdditionsToGoodwillAmount / us-gaap_StatementBusinessSegmentsAxis = cbz_EmployeeServicesMember	$ 7,900,000cbz_BusinessAcquisitionAdditionsToGoodwillAmount / us-gaap_StatementBusinessSegmentsAxis = cbz_EmployeeServicesMember

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- Definition

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+ References

No definition available.

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- Definition

Business divested number.

+ References

No definition available.

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- Definition

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+ References

No definition available.

+ Details

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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