Commitments and Contingencies (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Commitments and Contingencies [Abstract]
Outstanding letters of credit and performance bonds	$ 53.7	$ 34.0

Land Development Performance Obligations, Letters Of Credit And Performance Bonds

No definition available.

Name:	ccs_LandDevelopmentPerformanceObligationsLettersOfCreditAndPerformanceBonds
Namespace Prefix:	ccs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration