Earnings Per Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Weighted average nonvested restricted shares outstanding	3,800,000	3,700,000	3,800,000	3,600,000
Anti-dilutive common stock shares excluded from earnings per share amount			5,750,000
Weighted average number of OP units outstanding	351,000	352,000	351,000	352,000