Partners' Capital (Schedule Of Cash Distribution Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended	12 Months Ended		9 Months Ended		3 Months Ended				9 Months Ended	3 Months Ended				9 Months Ended	12 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	12 Months Ended		9 Months Ended			9 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		3 Months Ended				12 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		3 Months Ended				12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 First Monthly Distribution [Member]	Sep. 30, 2014 First Monthly Distribution Q1 [Member]	Mar. 31, 2014 First Monthly Distribution Q1 [Member] Other Unitholders [Member]		Sep. 30, 2014 First Monthly Distribution Q2 [Member]	Sep. 30, 2014 First Monthly Distribution Q3 [Member]	Sep. 30, 2014 First Monthly Distribution Q3 [Member] Other Unitholders [Member]		Sep. 30, 2014 First Monthly Distribution Q4 [Member]	Dec. 31, 2013 First Monthly Distribution Q4 [Member] Class B Units [Member] Other Unitholders [Member]		Sep. 30, 2014 Second Monthly Distribution [Member]	Sep. 30, 2014 Second Monthly Distribution Q1 [Member]	Jun. 30, 2014 Second Monthly Distribution Q1 [Member] Other Unitholders [Member]		Mar. 31, 2014 Second Monthly Distribution Q1 [Member] Other Unitholders [Member]		Sep. 30, 2014 Second Monthly Distribution Q2 [Member]	Jun. 30, 2014 Second Monthly Distribution Q2 [Member] Other Unitholders [Member]		Sep. 30, 2014 Second Monthly Distribution Q3 [Member] Other Unitholders [Member]		Sep. 30, 2014 Second Monthly Distribution Q4 [Member]	Dec. 31, 2013 Second Monthly Distribution Q4 [Member] Other Unitholders [Member]		Sep. 30, 2014 Third Monthly Distribution [Member]	Sep. 30, 2014 Third Monthly Distribution Q1 [Member]	Mar. 31, 2014 Third Monthly Distribution Q1 [Member] Other Unitholders [Member]		Sep. 30, 2014 Third Monthly Distribution Q2 [Member]	Jun. 30, 2014 Third Monthly Distribution Q2 [Member] Other Unitholders [Member]		Sep. 30, 2014 Third Monthly Distribution Q4 [Member]	Dec. 31, 2013 Third Monthly Distribution Q4 [Member] Other Unitholders [Member]		Sep. 30, 2014 Subsequent Event [Member]	Sep. 30, 2014 Subsequent Event [Member] First Monthly Distribution Q2 [Member]	Oct. 31, 2014 Subsequent Event [Member] Second Monthly Distribution [Member]	Sep. 30, 2014 Subsequent Event [Member] Second Monthly Distribution Q3 [Member]	Sep. 30, 2014 Class C Convertible Preferred Unitholders [Member]		Jun. 30, 2014 Class C Convertible Preferred Unitholders [Member]		Mar. 31, 2014 Class C Convertible Preferred Unitholders [Member]		Dec. 31, 2013 Class C Convertible Preferred Unitholders [Member]		Dec. 31, 2013 General Partner [Member] First Monthly Distribution Q4 [Member]		Dec. 31, 2013 General Partner [Member] Second Monthly Distribution Q4 [Member]		Dec. 31, 2013 General Partner [Member] Third Monthly Distribution Q4 [Member]		Mar. 31, 2014 Class B Units [Member] First Monthly Distribution Q1 [Member]		Sep. 30, 2014 Class B Units [Member] First Monthly Distribution Q3 [Member]		Dec. 31, 2013 Class B Units [Member] First Monthly Distribution Q4 [Member]		Jun. 30, 2014 Class B Units [Member] Second Monthly Distribution Q1 [Member]		Mar. 31, 2014 Class B Units [Member] Second Monthly Distribution Q1 [Member]		Jun. 30, 2014 Class B Units [Member] Second Monthly Distribution Q2 [Member]		Sep. 30, 2014 Class B Units [Member] Second Monthly Distribution Q3 [Member]		Dec. 31, 2013 Class B Units [Member] Second Monthly Distribution Q4 [Member]		Mar. 31, 2014 Class B Units [Member] Third Monthly Distribution Q1 [Member]		Jun. 30, 2014 Class B Units [Member] Third Monthly Distribution Q2 [Member]		Dec. 31, 2013 Class B Units [Member] Third Monthly Distribution Q4 [Member]		Mar. 31, 2014 Limited Partners-Public Common [Member] First Monthly Distribution Q1 [Member]		Sep. 30, 2014 Limited Partners-Public Common [Member] First Monthly Distribution Q3 [Member]		Dec. 31, 2013 Limited Partners-Public Common [Member] First Monthly Distribution Q4 [Member]		Jun. 30, 2014 Limited Partners-Public Common [Member] Second Monthly Distribution Q1 [Member]		Mar. 31, 2014 Limited Partners-Public Common [Member] Second Monthly Distribution Q1 [Member]		Jun. 30, 2014 Limited Partners-Public Common [Member] Second Monthly Distribution Q2 [Member]		Sep. 30, 2014 Limited Partners-Public Common [Member] Second Monthly Distribution Q3 [Member]		Dec. 31, 2013 Limited Partners-Public Common [Member] Second Monthly Distribution Q4 [Member]		Mar. 31, 2014 Limited Partners-Public Common [Member] Third Monthly Distribution Q1 [Member]		Jun. 30, 2014 Limited Partners-Public Common [Member] Third Monthly Distribution Q2 [Member]		Dec. 31, 2013 Limited Partners-Public Common [Member] Third Monthly Distribution Q4 [Member]		Mar. 31, 2014 Limited Partners-Affiliated - Common [Member] First Monthly Distribution Q1 [Member]		Sep. 30, 2014 Limited Partners-Affiliated - Common [Member] First Monthly Distribution Q3 [Member]		Dec. 31, 2013 Limited Partners-Affiliated - Common [Member] First Monthly Distribution Q4 [Member]		Jun. 30, 2014 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution Q1 [Member]		Mar. 31, 2014 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution Q1 [Member]		Jun. 30, 2014 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution Q2 [Member]		Sep. 30, 2014 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution Q3 [Member]		Dec. 31, 2013 Limited Partners-Affiliated - Common [Member] Second Monthly Distribution Q4 [Member]		Mar. 31, 2014 Limited Partners-Affiliated - Common [Member] Third Monthly Distribution Q1 [Member]		Jun. 30, 2014 Limited Partners-Affiliated - Common [Member] Third Monthly Distribution Q2 [Member]		Dec. 31, 2013 Limited Partners-Affiliated - Common [Member] Third Monthly Distribution Q4 [Member]
Partners' Cash Distribution Activity [Line Items]
Distribution to unitholders	$ 106,582	$ 106,226			$ 10,632	[1]			$ 10,705	[2]		$ 10,645	[3]			$ 10,716	[4]	$ 10,642	[5]		$ 10,667	[6]	$ 10,705	[7]		$ 10,644	[8]			$ 10,761	[9]		$ 10,735	[10]		$ 10,640	[11]					$ 3,500	[12]	$ 3,500	[12]	$ 3,500	[12]	$ 3,500	[12]	$ 8	[3]	$ 8	[8]	$ 9	[11]	$ 987	[1]	$ 991	[2]	$ 987	[3]	$ 990	[4]	$ 987	[5]	$ 978	[6]	$ 991	[7]	$ 987	[8]	$ 981	[9]	$ 1,011	[10]	$ 987	[11]	$ 8,483	[1]	$ 8,553	[2]	$ 8,489	[3]	$ 8,565	[4]	$ 8,494	[5]	$ 8,528	[6]	$ 8,553	[7]	$ 8,488	[8]	$ 8,619	[9]	$ 8,562	[10]	$ 8,483	[11]	$ 1,162	[1]	$ 1,161	[2]	$ 1,161	[3]	$ 1,161	[4]	$ 1,161	[5]	$ 1,161	[6]	$ 1,161	[7]	$ 1,161	[8]	$ 1,161	[9]	$ 1,162	[10]	$ 1,161	[11]
Cash distribution per unit			$ 0.1625		$ 0.1625	[1]			$ 0.1625	[2]		$ 0.1625	[3]			$ 0.1625	[4]	$ 0.1625	[5]		$ 0.1625	[6]	$ 0.1625	[7]		$ 0.1625	[8]			$ 0.1625	[9]		$ 0.1625	[10]		$ 0.1625	[11]			$ 0.1625		$ 0.21	[12]	$ 0.21	[12]	$ 0.21	[12]	$ 0.21	[12]
Number of days after quarter distributions paid	45 days		15 days											45 days														75 days
Date distribution was declared	Sep. 29, 2014			Mar. 01, 2014			Jun. 01, 2014	Sep. 01, 2014			Dec. 01, 2013				Apr. 01, 2014					Jul. 01, 2014					Jan. 01, 2014				May 01, 2014			Aug. 01, 2014			Feb. 01, 2014			Oct. 27, 2014			Oct. 01, 2014
Date distribution will be paid	Oct. 01, 2014			Apr. 01, 2014				Oct. 01, 2014			Jan. 01, 2014				May 01, 2014					Aug. 01, 2014					Feb. 01, 2014				Jun. 01, 2014			Sep. 01, 2014			Mar. 01, 2014			Nov. 01, 2014	Jul. 01, 2014		Nov. 01, 2014
Date unitholders of record	Oct. 09, 2014			Apr. 09, 2014				Oct. 09, 2014			Jan. 13, 2014				May 08, 2014					Aug. 07, 2014					Feb. 10, 2014				Jun. 09, 2014			Sep. 09, 2014			Mar. 10, 2014			Nov. 07, 2014	Jul. 09, 2014		Nov. 07, 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 September 2014, the Board of Directors approved the first monthly distribution of $0.1625 per unit with respect to the third quarter of 2014 which was paid in October 2014 to the unitholders of record as of October 9, 2014. This distribution was recorded in the third quarter of 2014.

[3] 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.

[4] In June 2014, the Board of Directors approved the first monthly distribution of $0.1625 per unit with respect to the second quarter of 2014 which was paid in July 2014 to the unitholders of record as of July 9, 2014. This distribution was recorded in the second quarter of 2014.

[5] In April 2014, the Board of Directors approved the second monthly distribution of $0.1625 per unit with respect to the first quarter of 2014 which was paid in May 2014 to the unitholders of record as of May 8, 2014.

[6] In July 2014, the Board of Directors approved the second monthly distribution of $0.1625 per unit with respect to the second quarter of 2014 which was paid in August 2014 to the unitholders of record as of August 7, 2014. This distribution was recorded in the third quarter of 2014.In August 2014, the Board of

[7] In October 2014, the Board of Directors approved the second monthly distribution of $0.1625 per unit with respect to the third quarter of 2014 which will be paid in November 2014 to the unitholders of record as of November 7, 2014. This distribution will be recorded in the fourth quarter of 2014.

[8] 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.

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

[10] In August 2014, the Board of Directors approved the third monthly distribution of $0.1625 per unit with respect to the second quarter of 2014 which was paid in September 2014 to the unitholders of record as of September 9, 2014. This distribution was recorded in the third quarter of 2014.

[11] 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.

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