Subsequent Events (Details)			12 Months Ended				0 Months Ended
	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2001 Burwood [Member] AUD	Mar. 31, 2014 Burwood [Member] AUD acre	May 09, 2014 Burwood [Member] Subsequent Event [Member] USD ($)	May 09, 2014 Burwood [Member] Subsequent Event [Member] AUD	May 23, 2014 Burwood [Member] Scenario, Forecast [Member] Subsequent Event [Member] USD ($)	May 23, 2014 Burwood [Member] Scenario, Forecast [Member] Subsequent Event [Member] AUD
Subsequent Event [Line Items]
Area of property				50.6
Sales price					$ 59,100,000	65,000,000
Proceeds from the sale property							5,900,000	6,500,000
Potential prepayment as percentage of sale price					90.00%	90.00%
Book basis of property	352,087,000	341,068,000		52,100,000
Capitalized aggregate interest expense				11,300,000
Upward mark to market revaluation amount			12,000,000
Carrying value of property	$ 194,490,000	$ 191,660,000