XML 65 R60.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Discontinued Operations and Divestitures - Additional Information (Detail) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Dec. 31, 2014 Office | Mar. 31, 2015 Operations | Mar. 31, 2014 Operations
Discontinued Operations and Disposal Groups [Abstract] |  |  |
Discontinued Operations, Number of Operations Sold | 2 cbz_DiscontinuedOperationsNumberOfOperationsSold | 0 cbz_DiscontinuedOperationsNumberOfOperationsSold | 0 cbz_DiscontinuedOperationsNumberOfOperationsSold

X
- Definition "Discontinued operations number of operations sold. + References No definition available. + Details
Name: | cbz_DiscontinuedOperationsNumberOfOperationsSold
Namespace Prefix: | cbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration