Fair Value Measurements - Schedule of Fair Value of Financial Assets Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities (included in "other assets")	$ 14,926	$ 21,639
Total assets	14,926	21,639
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities (included in "other assets")	14,926	21,639
Total assets	$ 14,926	$ 21,639