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Basis of Presentation (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) partnership	Dec. 31, 2018 USD ($) partnership	Mar. 01, 2019 USD ($)
Variable Interest Entity [Line Items]
Contingent consideration	$ 28,484	$ 0	$ 0
Number of partnerships consolidated | partnership		2	2
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
VIE, ownership interest rate	80.00%
5 Arches, LLC
Variable Interest Entity [Line Items]
Contingent consideration	$ 28,000			$ 24,621

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