Preferred Equity Investment (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Equity [Abstract]
Current pay rate	6.00%
Current accrual rate	2.00%
Interest Income from preferred equity investment	$ 1,100,000
Proceeds from sale of preferred equity investment	$ 35,100,000	$ 0