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Stock-Based Compensation and Employee Benefit Plans - Weighted-Average Assumptions for Non Performance-Based Fair Value for Stock Options (Detail) - Non Performance-Based Stock Options [Member] - VI Chip [Member]
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Risk-free interest rate 1.80% 2.90% 2.10%
Expected volatility 42.00% 44.00% 43.00%
Expected lives (years) 6 years 3 months 18 days 6 years 4 months 24 days 7 years 1 month 6 days