Cash Flow Information - Summary of Cash, Cash Equivalents, and Restricted Cash Reported within Statement of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Cash And Cash Equivalents [Abstract]
Cash and cash equivalents	$ 36,373	$ 12,211	$ 11,709
Restricted cash included in other assets	6,087		6,183
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$ 42,460	$ 19,629	$ 17,892	$ 32,445
Additional cash and cash equivalent related text	Our restricted cash consists of cash held in escrow by banks for real estate taxes and other purposes.