Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Ground lease liability	$ 59,123	$ 59,379
Prepaid rent	29,364	33,428
Security deposits	13,405	13,545
Restricted stock unit liability	7,856	16,592
Other liabilities	5,745	11,184
Total other liabilities	$ 115,493	$ 134,128