v2.4.0.8

Dividends (Parent Company [Member]) | 12 Months Ended
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Dec. 31, 2013
Parent Company [Member] |
Dividends Disclosure [Text Block] | Note B - Dividends During 2013, 2012 and 2011, the Registrant received dividends from its subsidiaries totaling $20,500, $29,000 and $69,100, respectively.

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- Definition Dividends disclosure + References No definition available. + Details
Name: | cnc_DividendsDisclosureTextBlock
Namespace Prefix: | cnc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration