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Related Party Transactions - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Related Party Transactions [Abstract]      
Allocations of expenses for general and administrative services $ 0us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty $ 1,900,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty  
Rental income from related party 14,000,000us-gaap_RevenueFromRelatedParties 11,000,000us-gaap_RevenueFromRelatedParties  
Tenant reimbursements from related party 1,206,000us-gaap_ReimbursementRevenue 1,300,000us-gaap_ReimbursementRevenue  
Account receivable due from related party for tenant reimbursement 1,953,000us-gaap_AccountsReceivableRelatedParties   2,275,000us-gaap_AccountsReceivableRelatedParties
Net contribution from (distribution to) Ensign   $ 10,239,000ctre_ProceedsFromPaymentsForContributionsFromDistributionToParent