Equity Method and Other Investmetns Equity Method and Other Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Equity method and other investments	$ 224,611	$ 245,534
Adjusted cost method investments
Schedule of Equity Method Investments [Line Items]
Equity method and other investments	12,386	5,386
Other partnerships
Schedule of Equity Method Investments [Line Items]
Equity method and other investments	83,052	79,667
APAC JV - Deconsolidated Noncontrolling Entity
Schedule of Equity Method Investments [Line Items]
Equity method and other investments	$ 129,173	$ 160,481