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Stock-Based Compensation - Schedule of Valuation Assumptions (Details) - Polaris Plan
12 Months Ended
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free rate of return 1.60%
Expected volatility 24.90%
Expected dividend yield 0.00%
Discount for Lack of Marketability 20.00%