Equity Investments in the Managed Programs and Real Estate - Summary of Earnings from Equity Method Investments in the Managed Programs and Real Estate (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule Of Equity Method Investments
Distributions of Available Cash (Note 3)			$ 12,889	$ 28,361
Proportionate share of equity in earnings of equity investments			9,442	27,883
Equity in earnings of equity method investments in the Managed Programs and real estate	$ 3,951	$ 12,558	9,442	27,883
Managed Programs
Schedule Of Equity Method Investments
Distributions of Available Cash (Note 3)	3,765	8,776	9,450	19,278
Proportionate share of equity in earnings of equity investments	312	1,167	525	3,030
Amortization of basis differences on equity method investments in the Managed Programs	(356)	(914)	(685)	(1,312)
Equity in earnings of equity method investments in the Managed Programs and real estate	3,721	9,029	9,290	20,996
Investment in real estate
Schedule Of Equity Method Investments
Proportionate share of equity in earnings of equity investments	774	4,084	1,336	7,987
Amortization of basis differences on equity method investments in the Managed Programs	(544)	(555)	(1,184)	(1,100)
Equity in earnings of equity method investments in the Managed Programs and real estate	$ 230	$ 3,529	$ 152	$ 6,887

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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