Equity-Based Compensation Plans (Summary of Service-Based and Performance-Based Awards) (Details) - Service-Based Awards $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Number of Phantom Units
Unvested at December 31, 2020 (in units) | shares	165,662
Granted (in units) | shares	71,340
Settled (in units) | shares	(28,484)
Unvested at December 31, 2021 (in units) | shares	208,518
Average Grant Date Fair Value
Unvested at December 31, 2020 (in dollars unit) | $ / shares	$ 11.19
Granted (in dollars per unit) | $ / shares	8.83
Settled (in dollars per unit) | $ / shares	9.05
Unvested at December 31, 2021 (in dollars per unit) | $ / shares	$ 10.67
Total Value (in thousands)
Unvested at December 31, 2020 | $	$ 1,853
Granted | $	630
Settled | $	(258)
Unvested at December 31, 2021 | $	$ 2,225