Commitments and Contingencies - Hurricane Impacts (Details) $ in Thousands	3 Months Ended	12 Months Ended		27 Months Ended
	Sep. 30, 2017 property	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)
Hurricane Impact
Insurance proceeds recorded as business interruption		$ 5,662	$ 19,083
Loss from Catastrophes | PUERTO RICO | Wholly owned properties
Hurricane Impact
Number of properties significantly damaged | property	2
Total insurance proceeds received				$ 73,900
Insurance proceeds received and used for property restoration and remediation				$ 45,500
Loss from Catastrophes | PUERTO RICO | Wholly owned properties | Other income
Hurricane Impact
Insurance proceeds recorded as business interruption		$ 10,500	$ 17,900