Balance Sheet Components - Other Long-Term Assets (Details) - USD ($) $ in Thousands		Jun. 30, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid insurance		$ 10,657	$ 11,792
Prepaid and other long-term assets		10,725	8,992
Long-term lease receivable		7,517	6,995
Deferred commissions		7,022	6,732
Other long-term assets	[1]	$ 35,921	$ 34,511

[1] We have variable interest entities, which represent a portion of the consolidated balances recorded within these financial statement line items in the condensed consolidated balance sheets (see Note 11 - Portfolio Financings).