Partners' Capital, Mezzanine Equity and Distributions (Class A Convertible Preferred Units Narrative) (Details) - Class A Convertible Preferred Units $ / shares in Units, $ in Thousands	Sep. 01, 2024 USD ($) director shares	Sep. 01, 2022	Mar. 01, 2019 quarter	Sep. 01, 2017 USD ($) buyer $ / shares shares	Dec. 31, 2019 shares	Sep. 01, 2019 USD ($)	Dec. 31, 2018 shares
Temporary Equity [Line Items]
Private placement of convertible preferred units | $				$ 750,000
Class A convertible preferred units issued (in units)					25,336,778		24,438,022
Number of shares authorized to be converted (in units)				7,416,498
Consecutive period for shares to be converted				12 months
Minimum number of shares outstanding authorized to be converted (in units)				592,768
Volume weighted average price percentage				95.00%
Consideration payable to holders in cash for change of control percentage				90.00%
Threshold trading days to notify holders				30 days
Consecutive trading days in period ending on fifth trading day				30 days
Change in control multiplier price percentage				101.00%
Basis spread			2
Aggregate amount of conversion required, minimum | $						$ 50,000
Number of quarters in trading period | quarter			2
In Arrears At Annual Rate
Temporary Equity [Line Items]
Dividend rate percentage				8.75%
Dividend amount (in dollars per unit) | $ / shares				$ 2.9496
Quarterly Rate
Temporary Equity [Line Items]
Dividend rate percentage				2.1875%
Dividend amount (in dollars per unit) | $ / shares				$ 0.7374
Scenario, Forecast
Temporary Equity [Line Items]
Threshold trading days to notify holders		30 days
Reset rate		10.75%
Percentage below issue price		110.00%
Percentage of holders required to approve rate reset election		25.00%
Multiplier liquidation value percentage prior to September 1, 2024	110.00%
Multiplier liquidation value percentage thereafter	105.00%
Conversion ratio	1
Aggregate amount of ownership required for initial purchasers to attend board meetings | $	$ 200,000
Percentage required for initial purchasers to purchase securities	50.00%
Aggregate number of ownership units required for initial purchasers to appoint directors (in units)	11,124,747
Number of directors that initial purchasers have right to appoint | director	2
Minimum
Temporary Equity [Line Items]
Redemption premium percentage				115.00%
Maximum
Temporary Equity [Line Items]
Redemption premium percentage				101.00%
LIBOR | Scenario, Forecast
Temporary Equity [Line Items]
Basis spread		7.50
Private Placement
Temporary Equity [Line Items]
Private placement of convertible preferred units | $				$ 750,000
Class A convertible preferred units issued (in units)				22,249,494
Cash purchase price per unit (in dollars per unit) | $ / shares				$ 33.71
Number of initial purchasers | buyer				2