Balance Sheet Components - Schedule of Net Accounts Receivable Balance Concentrations by Major Category (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Net accounts receivable	$ 28,422	$ 34,325
Rental
Accounts Notes And Loans Receivable [Line Items]
Net accounts receivable	3,314	2,464
Business To Business And Other Receivables
Accounts Notes And Loans Receivable [Line Items]
Net accounts receivable	$ 25,108	$ 31,861