Summary of Significant Accounting Policies and Procedures and Recent Accounting Pronouncements - Net Income Per Common Share (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Weighted Average Number of Shares Outstanding, Basic	235,767,932	218,390,885	191,754,857
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	123,436	59,978	26,765
Weighted average shares used for diluted net income per share computation	236,208,390	218,767,885	191,781,622
Convertible Partnership Units
Weighted average shares used for diluted net income per share computation	317,022	317,022
Unvested shares from share-based compensation that were anti-dilutive	417,060	523,847	851,568
Unvested Shares
Unvested shares from share-based compensation that were anti-dilutive	106,103	51,749	59,629