Commitments and Contingencies (CapLease Litigation Matters) (Detail) (CapLease [Member], John Poling Putative Class Action [Member])	0 Months Ended
	Oct. 08, 2013
Series B Cumulative Preferred [Member]
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage	8.375%
Series C Cumulative Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage	7.25%