Partners' Capital, Mezzanine Equity and Distributions (Narrative) (Details) $ / shares in Units, $ in Millions	Sep. 01, 2024 USD ($) director shares	Sep. 01, 2022	Mar. 01, 2019 quarter	Sep. 01, 2017 USD ($) $ / shares shares	Mar. 24, 2017 USD ($) $ / shares shares	Sep. 01, 2019 USD ($)	Sep. 30, 2017 shares	Dec. 31, 2016 shares
Partners Capital And Distributions [Line Items]
Partners' capital, units outstanding							122,579,218	117,979,218
Common units, issued (in shares)							122,579,218	117,979,218
Class A Convertible Preferred Units
Number of convertible preferred units issued (in shares)							22,249,494	0
Class A Convertible Preferred Stock Units
Class A Convertible Preferred Units
Maximum number of preferred units permitted to be converted (in shares)				7,416,498
Consecutive period for preferred units permitted to be converted				12 months
Volume weighted-average percentage price percentage				592,768
Percentage of volume weighted- average price per common unit				95.00%
Percentage of consideration payable to holders in cash for change of control				90.00%
Trading days in period to notify holders				30 days
Trading days in period prior to change in control				30 days
Consecutive trading days in period ending on the fifth trading day				30 days
Multiplier change in control percentage				101.00%
Class A Convertible Preferred Stock Units | Scenario, Forecast
Class A Convertible Preferred Units
Trading days in period to notify holders		30 days
Basis spread on variable rate over stock price			0.0200
Stock reset rate percentage		10.75%
Percentage below issue price per share		10.00%
Percentage of holders required to approve rate reset election		25.00%
Multiplier liquidation value per share percentage before September 1, 2024	110.00%
Multiplier liquidation value per share percentage after September 1, 2024	105.00%
Conversion ratio per unit of stock	1
Aggregate amount of conversion required, minimum | $						$ 50.0
Number of quarters in trading period | quarter			2
Aggregate amount ownership required for initial purchasers to attend Board Meetings | $	$ 200.0
Percentage required for initial purchasers to acquire securities	50.00%
Aggregate number of ownership units required for initial purchasers to appoint directors	11,124,747
Number of directors that initial purchasers have the right to appoint | director	2
Class A Convertible Preferred Stock Units | LIBOR | Scenario, Forecast
Class A Convertible Preferred Units
Basis spread on variable rate over stock price		0.0750
Class A Convertible Preferred Stock Units | Minimum
Class A Convertible Preferred Units
Premium factor percentage				115.00%
Class A Convertible Preferred Stock Units | Maximum
Class A Convertible Preferred Units
Premium factor percentage				101.00%
Class A Convertible Preferred Stock Units | In Arrears At Annual Rate
Class A Convertible Preferred Units
Stock distribution rate percentage				8.75%
Stock dividend rate per unit (in dollars per share) | $ / shares				$ 2.9496
Class A Convertible Preferred Stock Units | Quarterly Rate
Class A Convertible Preferred Units
Stock distribution rate percentage				2.1875%
Stock dividend rate per unit (in dollars per share) | $ / shares				$ 0.7374
Class A Convertible Preferred Stock Units | Private Placement
Class A Convertible Preferred Units
Value of convertible preferred units issued | $				$ 750.0
Number of convertible preferred units issued (in shares)				22,249,494
Cash purchase price per unit (in dollars per share) | $ / shares				$ 33.71
Number of initial purchasers				2
Limited Partner | Common Class A
Partners Capital And Distributions [Line Items]
Partners' capital, units outstanding							122,539,221
Limited Partner | Common Class B
Partners Capital And Distributions [Line Items]
Partners' capital, units outstanding							39,997
Common Class A
Partners Capital And Distributions [Line Items]
Common units, issued (in shares)					4,600,000
Sale of stock, price per share (in dollars per share) | $ / shares					$ 30.65
Common units issued to underwriters					600,000
Public sale of units net of offering costs | $					$ 140.5