Commitments and Contingencies Commitments and Contingencies - Future Minimum Rental Payments Under Terms of all Non-Cancelable Ground and Operating Leases (Parenthetical) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Minimum rental payments have not been reduced by minimum sublease rentals due in the future under non-cancelable subleases.	$ 6,832