Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Tax [Line Items]
Reserve for uncertain income tax positions	$ 0		$ 0
Interest for underpayment of income taxes	0	$ 0
Penalties for underpayment of income taxes	0	0
Current portion of income tax expense	$ 200,000	$ 200,000
Effective income tax rate	0.80%	0.80%
Deferred tax asset	$ 0		0
Deferred tax liabilities	0		$ 0
TRSs
Income Tax [Line Items]
Current portion of income tax expense	$ 0	$ 0
REIT Subsidiaries
Income Tax [Line Items]
Equity interest percentage by parent	100.00%