Stockholder's Equity (Details 5) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stockholders Equity (Textuals) [Abstract]
Common stock issued on conversion of preferred stock	258,542	988,007	1,039,721
Cumulative Convertible Preferred Stock, Outstanding	25,875,000us-gaap_PreferredStockSharesOutstanding	26,108,236us-gaap_PreferredStockSharesOutstanding	26,224,854us-gaap_PreferredStockSharesOutstanding	25,724,854us-gaap_PreferredStockSharesOutstanding
Other equity	$ 911,642.46us-gaap_StockOptionPlanExpense	$ 1,114,000us-gaap_StockOptionPlanExpense	$ 2,875,000us-gaap_StockOptionPlanExpense
Preferred stock balance average rate	0.065hcn_PreferredStockDividendPercentage	0.06496hcn_PreferredStockDividendPercentage	0.06493hcn_PreferredStockDividendPercentage	0.07013hcn_PreferredStockDividendPercentage
Other Equity
Stockholders Equity (Textuals) [Abstract]
Other equity	$ 911,642.46	$ 1,114,000	$ 2,875,000