Equity - Class C Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands						3 Months Ended
	Jan. 15, 2021	Oct. 15, 2020	Jul. 15, 2020	Apr. 15, 2020	Apr. 02, 2019	Sep. 30, 2019	Jun. 30, 2019
Schedule of Capitalization, Equity
Preferred units issued, net of offering costs						$ 102,757	$ 42,638
Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
Preferred units dividend rate					9.625%
Preferred unit par or stated value per unit					$ 25.00
Preferred units issued, net of offering costs					$ 42,900
Preferred units, underwriting discounts and commissions					1,400
Preferred units, offering costs					$ 700
Distributions made to preferred unitholders distributions declared per unit		$ 0.6016	$ 0.6016	$ 0.6016
Amount paid to preferred unitholders		$ 1,083	$ 1,083	$ 1,083
Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
Preferred units, dividend payment terms					The current distribution rate for the Class C Preferred Units is 9.625% per year of the $25.00 liquidation preference per unit (equal to $2.41 per unit per year).
Class C Perpetual Preferred Units | Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
Preferred units, issued (in units)					1,800,000
Subsequent Event | Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
Distributions made to preferred unitholders distributions declared per unit	$ 0.6016
Amount paid to preferred unitholders	$ 1,083