Receivables (Narrative) (Details) $ in Thousands	Dec. 31, 2017 facility center	Dec. 31, 2016 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of nursing centers | center	76
Kentucky and Kansas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of nursing centers | facility	22
Renovation Projects
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables and advances | $		$ 474