Organization and Significant Accounting Policies - Property and Equipment, net (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
Property, Plant and Equipment [Line Items] | |||
Depreciation | $ 3.7 | $ 3.4 | $ 3.4 |
Minimum | |||
Property, Plant and Equipment [Line Items] | |||
Useful life | 3 years | ||
Maximum | |||
Property, Plant and Equipment [Line Items] | |||
Useful life | 10 years |