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Shareholders' Equity / Partners' Capital - Noncontrolling Interest Activity in Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Class of Stock [Line Items]
Income (loss) allocated to noncontrolling interest	$ 4,099	$ 2,881	$ 11,129	$ 845
Consolidated Subsidiaries With Noncontrolling Interest
Class of Stock [Line Items]
Income (loss) allocated to noncontrolling interest	0	0	0	(259)
Class A Units
Class of Stock [Line Items]
Income (loss) allocated to noncontrolling interest	$ 4,099	$ 2,881	$ 11,129	$ 1,104

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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