Partners' Capital, Mezzanine Equity and Distributions (Class A Convertible Preferred Units - Narrative) (Details)								12 Months Ended
	Oct. 03, 2023 $ / shares shares	Jul. 03, 2023 $ / shares shares	Apr. 03, 2023 $ / shares shares	Sep. 01, 2022	Sep. 01, 2019 USD ($)	Mar. 01, 2019 USD ($) quarters director shares	Sep. 01, 2017 USD ($) buyer $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)	Nov. 14, 2024 $ / shares	Aug. 14, 2024 $ / shares	May 15, 2024 $ / shares	Feb. 14, 2024 $ / shares	Nov. 14, 2023 $ / shares	Aug. 14, 2023 $ / shares	Aug. 08, 2023 shares	May 15, 2023 $ / shares	Feb. 14, 2023 $ / shares	Nov. 14, 2022 $ / shares	Sep. 29, 2022	Aug. 12, 2022 $ / shares	May 17, 2022 shares	May 13, 2022 $ / shares	Apr. 14, 2020 shares	Sep. 23, 2019 shares
Temporary Equity [Line Items]
Accumulated distributions attributable to Class A preferred unitholders | $									$ (93,900,000)
Stock Repurchased and Retired During Period, Value | $									1,044,000
Net income attributable to redeemable noncontrolling interests | $								$ 0	$ 0	$ 30,443,000
Subsidiaries [Member] | Genesis Alkali Holdings Company, LLC [Member]
Temporary Equity [Line Items]
Net income attributable to redeemable noncontrolling interests | $										30,400,000
Maximum | Subsidiaries [Member] | Genesis Alkali Holdings Company, LLC [Member]
Temporary Equity [Line Items]
Convertible preferred units outstanding (in units) | shares																									351,750	350,000
Class A Convertible Preferred Stock Units
Temporary Equity [Line Items]
Class A convertible preferred units issued (in units) | shares								23,111,918	23,111,918
Number of shares authorized to be converted (in units) | shares							7,416,498
Consecutive period for shares to be converted							12 months
Minimum number of shares outstanding authorized to be converted (in units) | shares							592,768
Volume weighted average price percentage							95.00%
Consecutive trading days in period ending on fifth trading day							30 days
Consideration payable to holders in cash for change of control percentage							90.00%
Threshold trading days to notify holders				30 days			30 days
Change in control multiplier price percentage							101.00%
Temporary Equity, Basis Spread on Variable Rate				0.0750		0.0200															750
Reset rate				10.75%				11.24%													11.24%
Percentage below issue price				110.00%
Convertible preferred units outstanding (in units) | shares								23,111,918	23,111,918
Accumulated distributions attributable to Class A preferred unitholders | $								$ (87,600,000)	$ (90,700,000)	$ (80,100,000)
Conversion ratio					1
Aggregate amount of conversion required, minimum | $					$ 50,000,000
Number of quarters in trading period | quarters						2
Aggregate amount of ownership required for initial purchasers to attend board meetings | $						$ 200,000,000
Percentage required for initial purchasers to purchase securities						50.00%
Aggregate number of ownership units required for initial purchasers to appoint directors (in units) | shares						11,124,747
Number of directors that initial purchasers have right to appoint | director						2
Temporary Equity, Par or Stated Value Per Share | $ / shares	$ 35.2	$ 35.2	$ 35.2
Temporary Equity, Stock Issued During Period, Shares, New Issues | shares	2,224,860	2,224,860	2,224,860
Temporary Equity, Accretion to Redemption Value, Adjustment | $									3,200,000
Class A Convertible Preferred Stock Units | In Arrears At Annual Rate
Temporary Equity [Line Items]
Dividend rate percentage							8.75%
Dividend amount (in dollars per unit) | $ / shares							$ 2.9496
Class A Convertible Preferred Stock Units | Quarterly Rate
Temporary Equity [Line Items]
Dividend rate percentage							2.1875%
Dividend amount (in dollars per unit) | $ / shares							$ 0.7374
Class A Convertible Preferred Stock Units | Preferred Unitholders
Temporary Equity [Line Items]
Cash distributions per common unit (in dollars per unit) | $ / shares								$ 0.9473			$ 0.9473	$ 0.9473	$ 0.9473	$ 0.9473	$ 0.9473	$ 0.9473		$ 0.9473	$ 0.9473	$ 0.7374		$ 0.7374		$ 0.7374
Class A Convertible Preferred Stock Units | LIBOR Rate
Temporary Equity [Line Items]
Temporary Equity, Basis Spread on Variable Rate				0.0750																	750
Reset rate																					3.74%
Class A Convertible Preferred Stock Units | Minimum
Temporary Equity [Line Items]
Redemption premium percentage							115.00%
Class A Convertible Preferred Stock Units | Maximum
Temporary Equity [Line Items]
Redemption premium percentage							101.00%
Class A Convertible Preferred Stock Units | Private Placement
Temporary Equity [Line Items]
Private placement of convertible preferred units | $							$ 750,000,000
Class A convertible preferred units issued (in units) | shares							22,249,494
Cash purchase price per unit (in dollars per unit) | $ / shares							$ 33.71
Number of initial purchasers | buyer							2
Class A | 2023 Repurchase Program
Temporary Equity [Line Items]
Stock Repurchased and Retired During Period, Value | $									$ 1,000,000.0
Share Repurchase Program, Authorized, Number of Shares | shares																	12,253,922
Redeemable Non Controlling Interest | Subsidiaries [Member] | Genesis Alkali Holdings Company, LLC [Member]
Temporary Equity [Line Items]
Convertible preferred units outstanding (in units) | shares																							251,750			55,000