Annual report pursuant to Section 13 and 15(d)

Noncontrolling Interests In Subsidiaries (Changes In Noncontrolling Interests Of Subsidiaries) (Details)

v3.6.0.2
Noncontrolling Interests In Subsidiaries (Changes In Noncontrolling Interests Of Subsidiaries) (Details) - shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Noncontrolling Interests In Subsidiaries [Abstract]      
Balance, Beginning, Common Units 10,516,844 11,083,876 11,864,775
Redemption of common units for shares of common stock (28,739) (567,032) (780,899)
Balance, Ending, Common Units 10,488,105 10,516,844 11,083,876
Balance, Beginning, LTIP Units
Granted, LTIP Units 657,373    
Balance, Ending, LTIP Units 657,373