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Unit Based Awards - Long-Term Incentive Plans - Narrative (Details) $ in Thousands										3 Months Ended		9 Months Ended
	Jan. 24, 2029 shares	Jan. 24, 2028 shares	Jan. 24, 2027 shares	Jan. 24, 2026 shares	Jul. 16, 2025 shares	Feb. 11, 2025 director shares	Jul. 19, 2023 shares	Apr. 20, 2022 USD ($) shares	Jul. 21, 2021	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Apr. 19, 2022 shares	May 26, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award
Total unit-based compensation expense | $										$ 820	$ 1,661	$ 2,015	$ 2,984
Number of shares authorized (in shares) | shares																3,000,000
Phantom unit Awards
Share-based Compensation Arrangement by Share-based Payment Award
Trading days (days)									20 days
Shares available for grant (in shares) | shares								5,000,000							2,000,000
Liabilities related to outstanding awards | $										4,257		4,257		$ 3,480
Current liabilities related to outstanding awards | $										3,019		3,019		1,073
Noncurrent liabilities related to outstanding awards | $										1,238		1,238		$ 2,407
Unrecognized compensation cost related to non-vested restricted units | $										7,662		$ 7,662
Weighted average period for recognition (years)												2 years 1 month 24 days
Phantom unit Awards | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Granted, number of units (in shares) | shares					1,275,000	1,210,000	1,179,500	365,000
Total unit-based compensation expense | $								$ 1,123		754	$ 1,619	$ 1,859	$ 2,839
Phantom Units Appreciation Rights | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Granted, number of units (in shares) | shares					420,000	425,000	505,500	1,097,500
Restricted unit Awards
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized compensation cost related to non-vested restricted units | $										$ 349		$ 349
Weighted average period for recognition (years)												2 years 6 months 10 days
Vested, number of units (in shares) | shares												60,126
Restricted unit Awards | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)												3 years
Restricted unit Awards | Non-employee directors
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)												4 years
February Time Based Restricted Units
Share-based Compensation Arrangement by Share-based Payment Award
Number of independent directors receiving grants | director						3
February Time Based Restricted Units | Non-employee directors
Share-based Compensation Arrangement by Share-based Payment Award
Granted, number of units (in shares) | shares						18,000
February Time Based Restricted Units | Non-employee directors | Forecast
Share-based Compensation Arrangement by Share-based Payment Award
Vested, number of units (in shares) | shares	4,500	4,500	4,500	4,500

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