Supplemental Balance Sheet Information - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss beginning balance	$ 2,208	$ 1,838
Provision for expected credit losses, net of writeoffs & recoveries	10,268	4,686
Uncollectible receivables written off	(9,423)	(4,316)
Allowance for credit loss ending balance	$ 3,053	$ 2,208