Cumulative Other Comprehensive Loss - Schedule of Reclassifications Out of Cumulative Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reclassifications out of cumulative other comprehensive income (Loss)
Interest and other income, net	$ 46,815	$ 26,380	$ 10,331
Interest expense	26,585	52,183	$ 84,329
Amounts reclassified from cumulative other comprehensive loss to net income	372	49
Amounts Reclassified from Cumulative Other Comprehensive Loss to Net Income
Reclassifications out of cumulative other comprehensive income (Loss)
Amounts reclassified from cumulative other comprehensive loss to net income	372	49
Amounts Reclassified from Cumulative Other Comprehensive Loss to Net Income | Interest rate cap contract
Reclassifications out of cumulative other comprehensive income (Loss)
Interest and other income, net	293	0
Interest expense	$ 79	$ 49