Balance Sheet Components - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]
Depreciation	$ 1.8	$ 1.9	$ 5.2	$ 5.6
Capitalized costs	1.7	1.9	5.3	4.9
Amortization expense	0.8	$ 0.7	2.3	$ 1.9
Unamortized costs	$ 8.8		$ 8.8		$ 5.8

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- Definition

Additions made to capitalized computer software costs during the period.

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- Definition

Amount of expense for amortization of capitalized computer software costs.

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- Definition

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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