Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Ground lease liability	$ 58,619	$ 59,379
Prepaid rent	30,479	33,428
Security deposits	13,098	13,544
Restricted stock unit liability	10,613	16,592
Other liabilities	5,294	11,185
Total other liabilities	$ 118,103	$ 134,128