Distributions and Net Income Per Limited Partner Unit (Income In Excess Of Distribution) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Limited partners' interest in net income subsequent to IPO	$ 82,547	$ 66,167	$ 60,981
Limited partners' distribution declared on common units	66,388	66,365	64,718
Net income in excess of distribution (Distribution in excess of net income)	16,159	(198)	(3,737)
Common units
Limited partners' interest in net income subsequent to IPO	82,547	66,167	60,981
Limited partners' distribution declared on common units	66,388	66,365	64,718
Net income in excess of distribution (Distribution in excess of net income)	16,159	(198)	(3,737)
IDR Holders
Limited partners' interest in net income subsequent to IPO	0	0	0
Distributions declared with respect to the incentive distribution rights	0	0	0
Net income in excess of distribution (Distribution in excess of net income)	$ 0	$ 0	$ 0