Capital Accounts, Summary of Changes in Outstanding Units (Details) - Common Units [Member] - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Summary of changes in outstanding units [Roll Forward]
Number of common units outstanding, beginning balance (in units)	2,189,226,130	2,184,869,029	2,161,089,479
Common units issued to Skyline North Americas, Inc. in connection with settlement of Liquidity Option in March 2020 (in units)	54,807,352
Treasury units acquired in connection with settlement of Liquidity Option in March 2020 (in units)	(54,807,352)
Common unit repurchases under buyback program (in units)	(8,978,317)	(2,909,128)	(1,236,800)
Common units issued in connection with the vesting of phantom unit awards, net (in units)	3,162,095	2,720,603	2,442,436
Common units exchanged for preferred units in September 2020, with the common units received being immediately cancelled (in units)	(1,120,588)
Common units issued in connection with DRIP and EUPP (in units)		2,897,990	19,861,951
Common units issued in connection with employee compensation (in units)		1,626,041	1,443,586
Common units issued in connection with land acquisition (in units)			1,223,242
Other (in units)	19,638	21,595	45,135
Number of common units outstanding, ending balance (in units)	2,182,308,958	2,189,226,130	2,184,869,029