Non-controlling Interest - Distributions Paid or Payable (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 17, 2021	Dec. 31, 2020	Dec. 31, 2019
Tax and other distributions
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders		$ 3,006	$ 4,880
Dividend distributions
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders		11,052	10,550
Quarterly distribution
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders		$ 14,058	$ 15,430
Subsequent Event
Dividends Payable [Line Items]
Distributions paid or payable to or on behalf of non-controlling unitholders	$ 2,900