XML 55 R62.htm IDEA: XBRL DOCUMENT v3.20.1
Stock-Based Compensation - Relevant Data Used to Determine the Value of Performance Shares (Detail) - Performance Stock Unit Plan [Member] - USD ($)
shares in Thousands
3 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Performance Stock Units Issued and Significant Assumptions Used to Estimate Fair Values    
Shares granted 58 12
Fair value assumptions, risk free interest rate 1.30% 2.40%
Fair value assumptions, expected life in years 2 years 10 months 24 days 2 years 9 months 18 days
Fair value assumptions, expected volatility 25.10% 23.50%
Fair value assumptions, expected volatility of peer companies 26.10% 26.20%
Fair value assumptions, correlation coefficient 36.60% 34.20%
Fair value assumptions, expected dividends