Partners' Capital (Schedule Of Cash Distribution Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended					3 Months Ended				12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended		3 Months Ended			12 Months Ended								3 Months Ended			12 Months Ended						3 Months Ended			12 Months Ended						3 Months Ended			12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 First Monthly Distribution [Member]	Dec. 31, 2013 First Monthly Distribution [Member]	Apr. 30, 2014 First Monthly Distribution [Member]	Mar. 31, 2014 First Monthly Distribution [Member] Other Unitholders [Member]		Mar. 31, 2014 Second Monthly Distribution [Member]	Mar. 31, 2014 Second Monthly Distribution [Member] Other Unitholders [Member]	Dec. 31, 2013 Second Monthly Distribution [Member] Class B Units [Member] Other Unitholders [Member]		Mar. 31, 2014 Third Monthly Distribution [Member]	Dec. 31, 2013 Third Monthly Distribution [Member] Other Unitholders [Member]		Mar. 31, 2014 Fourth Monthly Distribution [Member]	Dec. 31, 2013 Fourth Monthly Distribution [Member] Other Unitholders [Member]		Mar. 31, 2014 Subsequent Event [Member]	Apr. 24, 2014 Subsequent Event [Member]	Mar. 31, 2014 Subsequent Event [Member] First Monthly Distribution [Member]	Mar. 31, 2014 Subsequent Event [Member] Second Monthly Distribution [Member]	May 31, 2014 Subsequent Event [Member] Second Monthly Distribution [Member]	Dec. 31, 2013 Class C Convertible Preferred [Member] First Monthly Distribution [Member]		Dec. 31, 2013 General Partner [Member] Second Monthly Distribution [Member]		Dec. 31, 2013 General Partner [Member] Third Monthly Distribution [Member]		Dec. 31, 2013 General Partner [Member] Fourth Monthly Distribution [Member]		Mar. 31, 2014 Class B Units [Member] First Monthly Distribution [Member]		Mar. 31, 2014 Class B Units [Member] Second Monthly Distribution [Member]	Dec. 31, 2013 Class B Units [Member] Second Monthly Distribution [Member]		Dec. 31, 2013 Class B Units [Member] Third Monthly Distribution [Member]		Dec. 31, 2013 Class B Units [Member] Fourth Monthly Distribution [Member]		Mar. 31, 2014 Limited Partners-Public Common [Member] First Monthly Distribution [Member]		Mar. 31, 2014 Limited Partners-Public Common [Member] Second Monthly Distribution [Member]	Dec. 31, 2013 Limited Partners-Public Common [Member] Second Monthly Distribution [Member]		Dec. 31, 2013 Limited Partners-Public Common [Member] Third Monthly Distribution [Member]		Dec. 31, 2013 Limited Partners-Public Common [Member] Fourth Monthly Distribution [Member]		Mar. 31, 2014 Limited Partners-Affiliated - Common [Member] First Monthly Distribution [Member]		Mar. 31, 2014 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution [Member]	Dec. 31, 2013 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution [Member]		Dec. 31, 2013 Limited Partners-Affiliated - Common [Member] Third Monthly Distribution [Member]		Dec. 31, 2013 Limited Partners-Affiliated - Common [Member] Fourth Monthly Distribution [Member]
Partners' Cash Distribution Activity [Line Items]
Distribution to unitholders	$ 35,422	$ 32,284				$ 10,624	[1]		$ 10,543	$ 10,645	[2]		$ 10,646	[3]		$ 10,641	[4]						$ 3,500	[5]	$ 8	[2]	$ 8	[3]	$ 8	[4]	$ 978	[1]	$ 997	$ 987	[2]	$ 988	[3]	$ 988	[4]	$ 8,485	[1]	$ 8,385	$ 8,489	[2]	$ 8,489	[3]	$ 8,484	[4]	$ 1,161	[1]	$ 1,161	$ 1,161	[2]	$ 1,161	[3]	$ 1,161	[4]
Cash distribution per unit					$ 0.1625	$ 0.1625	[1]		$ 0.1625	$ 0.1625	[2]		$ 0.1625	[3]		$ 0.1625	[4]		$ 0.1625			$ 0.1625	$ 0.21	[5]
Number of days after quarter distributions paid	45 days		15 days					45 days				75 days
Date distribution was declared			Mar. 28, 2014	Dec. 01, 2013				Jan. 01, 2014				Feb. 01, 2014			Mar. 01, 2014			Apr. 24, 2014		Apr. 01, 2014	Apr. 24, 2014
Date distribution will be paid			Apr. 30, 2014	Jan. 01, 2014				Feb. 01, 2014				Mar. 01, 2014			Apr. 01, 2014			May 14, 2014		May 01, 2014	May 31, 2014
Date unitholders of record			Apr. 09, 2014	Jan. 13, 2014				Feb. 10, 2014				Mar. 10, 2014			Apr. 09, 2014			May 08, 2014		May 08, 2014	May 08, 2014

[1] In March 2014, the Board of Directors approved the first monthly distribution of $0.1625 per unit with respect to the first quarter of 2014 which was paid in April 2014 to the unitholders of record as of April 9, 2014.

[2] In December 2013, the Board of Directors approved the first monthly distribution of $0.1625 per unit with respect to the fourth quarter of 2013 which was paid in January 2014 to the unitholders of record as of January 13, 2014. This distribution was recorded in the fourth quarter 2013.

[3] In January 2014, the Board of Directors approved the second monthly distribution of $0.1625 per unit with respect to the fourth quarter of 2013 which was paid in February 2014 to the unitholders of record as of February 10, 2014.

[4] In February 2014, the Board of Directors approved the third monthly distribution of $0.1625 per unit with respect to the fourth quarter of 2013 which was paid in March 2014 to the unitholders of record as of March 10, 2014.

[5] Distributions were made within 45 days after the end of each quarter.