XML 44 R97.htm IDEA: XBRL DOCUMENT v2.4.0.8

Earnings Per Share - Additional Information (Detail) (USD $)	Dec. 31, 2013
2006 Notes [Member]
Earnings Per Share [Line Items]
Conversion price of debt issued	$ 10.63
2010 Notes [Member]
Earnings Per Share [Line Items]
Conversion price of debt issued	$ 7.41

X

- Details

Name:	cbz_EarningsPerShareLineItems
Namespace Prefix:	cbz_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

Name:	us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant