Commitments and Contingencies (Litigation) (Narrative) (Details)	1 Months Ended
	Dec. 31, 2013 USD ($)	Oct. 31, 2013	Oct. 28, 2015 lawsuit	Jan. 31, 2015 lawsuit	Jan. 20, 2015 lawsuit	Apr. 30, 2013 lawsuit	Mar. 31, 2013 lawsuit
Pending Litigation [Member] | Claims Under The Securities Act of 1933 and Securities Exchange Act of 1934 [Member]
Loss Contingencies [Line Items]
Number of claims			4
SDNY Actions [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of claims					10
Securities Fraud Action [Member] | Stayed Litigation [Member] | Claims Under The Securities Act of 1933 [Member]
Loss Contingencies [Line Items]
Number of claims				2
John Poling Putative Class Action [Member] | Series B Cumulative Preferred [Member] | CapLease [Member]
Loss Contingencies [Line Items]
Preferred stock, dividend rate		8.375%
John Poling Putative Class Action [Member] | Series C Cumulative Preferred Stock [Member] | CapLease [Member]
Loss Contingencies [Line Items]
Preferred stock, dividend rate		7.25%
Class Action [Member] | Stayed Litigation [Member] | Claims Under The Securities Act of 1933 [Member]
Loss Contingencies [Line Items]
Number of claims						1	1
Putative Class Action [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Stipulation of settlement, maximum attorney fees | $	$ 625,000