Long-Term Incentive Plan Units (Roll-Forward Of Company's LTIP Units Outstanding) (Details) - Long-Term Incentive Plan Units [Member] - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
LTIP Units Outstanding, beginning of period	469,539	449,938	469,539	449,938
Granted	0	0	0	0
Director LTIP Units exercised	0	0	0	0
LTIP Units Outstanding, end of period	469,539	449,938	469,539	449,938
LTIP Units Vested and Outstanding	440,828	421,120	440,828	421,120
Manager [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
LTIP Units Outstanding, beginning of period	375,000	375,000	375,000	375,000
Granted	0	0	0	0
Director LTIP Units exercised	0	0	0	0
LTIP Units Outstanding, end of period	375,000	375,000	375,000	375,000
LTIP Units Vested and Outstanding	375,000	375,000	375,000	375,000
Non-Manager [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
LTIP Units Outstanding, beginning of period	94,539	74,938	94,539	74,938
Granted	0	0	0	0
Director LTIP Units exercised	0	0	0	0
LTIP Units Outstanding, end of period	94,539	74,938	94,539	74,938
LTIP Units Vested and Outstanding	65,828	46,120	65,828	46,120