Schedule III - Real Estate and Accumulated Depreciation - Schedule of Change in Real Estate (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Beginning balance	$ 1,184,000	$ 1,182,447	$ 1,184,000
Additions	0	0	10,967
Impairments		0	12,334
Disposals	0	(1,078)	(186)
Depreciation expense	0	0	0
Ending balance	1,184,000	1,181,369	1,182,447
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Beginning balance	0	0	0
Additions	0	0	0
Impairments		0	0
Disposals	0	0	0
Depreciation expense	0	0	0
Ending balance	$ 0	$ 0	$ 0