Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Leases not yet commenced, liability	$ 12,677,000		$ 12,677,000
Impairment of right-of-use asset	$ 1,933	$ 5,777	$ 1,933