| Restructuring Costs (Details) - USD ($) | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |
| Restructuring Cost and Reserve [Line Items] | |||
| Loss on restructuring | $ 24,000,000 | $ 0 | $ 0 | 
| Disposal Group, Not Discontinued Operations | Automatic Labs Inc. | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Loss on restructuring | $ 24,000,000 | ||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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