Long-Term Incentive Plan Units (Roll-Forward Of Company's LTIP Units Outstanding) (Details) - shares		3 Months Ended		9 Months Ended
	Sep. 16, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Exercised		(1,947)	(1,822)	(1,947)	(1,822)
Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
LTIP Units Outstanding		429,314	411,052	429,314	411,052
Granted		7,425	5,841	7,425	5,841
Exercised		(1,947)	(1,822)	(1,947)	(1,822)
LTIP Units Outstanding		434,792	415,071	434,792	415,071
LTIP Units Vested and Outstanding		408,753	398,958	408,753	398,958
Manager [Member] | Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
LTIP Units Outstanding		375,000	375,000	375,000	375,000
Granted		0	0	0	0
Exercised		0	0	0	0
LTIP Units Outstanding		375,000	375,000	375,000	375,000
LTIP Units Vested and Outstanding		375,000	375,000	375,000	375,000
Non-Manager [Member] | Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
LTIP Units Outstanding		54,314	36,052	54,314	36,052
Granted	7,425	7,425	5,841	7,425	5,841
Exercised		(1,947)	(1,822)	(1,947)	(1,822)
LTIP Units Outstanding		59,792	40,071	59,792	40,071
LTIP Units Vested and Outstanding		33,753	23,958	33,753	23,958