Net Income Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Net income	$ 34,801	$ 24,803
Net (income) loss attributable to noncontrolling interests in consolidated entities	(570)	43
Net income attributable to common unitholders	34,231	24,846
Effect of dilutive securities:
Interest expense from SPLP Preferred Units	3,101	3,069
Net income attributable to common unitholders – assuming dilution	$ 37,332	$ 27,915
Net income per common unit – basic
Net income attributable to common unitholders (in dollars per share)	$ 1.65	$ 1.15
Net income per common unit – diluted
Net income attributable to common unitholders (in dollars per share)	$ 1.50	$ 1.09
Denominator for net income per common unit - basic (in shares)	20,762,244	21,685,794
Effect of dilutive securities:
Incentive Units (in shares)	0	88,365
Unvested restricted common units (in shares)	28,212	15,756
SPLP Preferred Units (in shares)	4,020,720	3,751,331
Denominator for net income per common unit - diluted (in shares)	24,811,176	25,541,246