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Related-Party Transactions - Narrative (Detail) (USD $)
12 Months Ended 96 Months Ended
Dec. 31, 2013
property
Dec. 31, 2012
property
Dec. 31, 2012
property
Sep. 30, 2014
Sep. 29, 2012
Related Party Transaction [Line Items]          
Number of finished lots 82ccs_NumberOfFinishedLots 49ccs_NumberOfFinishedLots 49ccs_NumberOfFinishedLots    
Number of partially finished lots 92ccs_NumberOfPartiallyFinishedLots 26ccs_NumberOfPartiallyFinishedLots 26ccs_NumberOfPartiallyFinishedLots    
Land and land development $ 92,050,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts     $ 272,038,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts  
Payment to acquire land 4,800,000us-gaap_PaymentsToAcquireLand 8,100,000us-gaap_PaymentsToAcquireLand 9,800,000us-gaap_PaymentsToAcquireLand    
Non-cash distribution to members 3,800,000ccs_MembershipInterestsNonCashDistribution        
Gross margin benefit 4,300,000ccs_GrossProfitBenefit 3,300,000ccs_GrossProfitBenefit      
Carrying basis of lots 2,100,000us-gaap_InventoryLandHeldForDevelopmentAndSale 4,400,000us-gaap_InventoryLandHeldForDevelopmentAndSale 4,400,000us-gaap_InventoryLandHeldForDevelopmentAndSale    
Assets 312,639,000us-gaap_Assets 90,673,000us-gaap_Assets 90,673,000us-gaap_Assets 638,593,000us-gaap_Assets  
Liabilities 41,083,000us-gaap_Liabilities 66,112,000us-gaap_Liabilities 66,112,000us-gaap_Liabilities 270,824,000us-gaap_Liabilities  
Management fees 200,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty 600,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty      
Regency [Member]          
Related Party Transaction [Line Items]          
Number of finished lots   26ccs_NumberOfFinishedLots
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
26ccs_NumberOfFinishedLots
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
   
Land and land development   2,300,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
2,300,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
   
Non-cash distribution to members   1,700,000ccs_MembershipInterestsNonCashDistribution
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
     
Mortgage principal amount 22,200,000us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
       
Mortgage outstanding balance   11,400,000us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
11,400,000us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
   
Assets   21,600,000us-gaap_Assets
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
21,600,000us-gaap_Assets
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
   
Liabilities   11,400,000us-gaap_Liabilities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
11,400,000us-gaap_Liabilities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
   
Ownership percentage         22.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RegencyMember
Related Party [Member]          
Related Party Transaction [Line Items]          
Land and land development 1,000,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ccs_RelatedPartyMember
       
Waterside at Highland Park, LLC [Member]          
Related Party Transaction [Line Items]          
Number of partially finished lots   76ccs_NumberOfPartiallyFinishedLots
/ us-gaap_RelatedPartyTransactionAxis
= ccs_WatersideAtHighlandParkLlcMember
76ccs_NumberOfPartiallyFinishedLots
/ us-gaap_RelatedPartyTransactionAxis
= ccs_WatersideAtHighlandParkLlcMember
   
Non-cash distribution to members   3,700,000ccs_MembershipInterestsNonCashDistribution
/ us-gaap_RelatedPartyTransactionAxis
= ccs_WatersideAtHighlandParkLlcMember
     
Connection With Private Placement [Member]          
Related Party Transaction [Line Items]          
Number of finished lots 335ccs_NumberOfFinishedLots
/ us-gaap_RelatedPartyTransactionAxis
= ccs_ConnectionWithPrivatePlacementMember
       
Number of partially finished lots 699ccs_NumberOfPartiallyFinishedLots
/ us-gaap_RelatedPartyTransactionAxis
= ccs_ConnectionWithPrivatePlacementMember
       
Payment to acquire land 34,000,000us-gaap_PaymentsToAcquireLand
/ us-gaap_RelatedPartyTransactionAxis
= ccs_ConnectionWithPrivatePlacementMember
       
Member Contributed Land [Member]          
Related Party Transaction [Line Items]          
Land and land development   1,300,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionAxis
= ccs_MemberContributedLandMember
1,300,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionAxis
= ccs_MemberContributedLandMember
   
Land Previously Owned By Entities Under Common Control [Member]          
Related Party Transaction [Line Items]          
Land and land development   $ 2,700,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionAxis
= ccs_LandPreviouslyOwnedByEntitiesUnderCommonControlMember
$ 2,700,000us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
/ us-gaap_RelatedPartyTransactionAxis
= ccs_LandPreviouslyOwnedByEntitiesUnderCommonControlMember