Employee Benefit Plans (Details) - Skyhook - Skyhook 401(k) Plan - USD ($) $ in Millions  | 
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019  | 
Dec. 31, 2018  | 
Dec. 31, 2017  | 
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| Company matching contribution (as a percent) | 100.00% | ||
| Employee salary eligible for matching contributions (as a percent) | 10.00% | ||
| Employer cash contribution | $ 0.8 | $ 0.8 | $ 1.0 | 
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available. 
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available. 
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| X | ||||||||||
- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available. 
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| X | ||||||||||
- Details 
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- Details 
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