Interest and Other Income, net - Schedule Of Interest And Other Income, net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest And Other Income [Abstract]
Interest income, net	$ 1,072	$ 858	$ 4,190	$ 2,862
Mark-to-market of investments in our deferred compensation plans	150	990	3,061	1,280
Preferred equity investment income		930	454	2,746
Total interest and other income, net	$ 1,222	$ 2,778	$ 7,705	$ 6,888