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Purchase price of common stock expressed as a percentage of its fair value.

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Stock-Based Compensation (Details)	3 Months Ended		12 Months Ended
Stock-Based Compensation (Details)	Mar. 27, 2022 $ / shares shares	Mar. 28, 2021 $ / shares shares	Dec. 31, 2021
Second Amended and Restated 2004 Stock Incentive Plan
Stock-based compensation
Vesting period	3 years
Second Amended and Restated 2004 Stock Incentive Plan \| Deferred shares
Stock-based compensation
Granted (in shares)	45,121	51,819
Second Amended and Restated 2004 Stock Incentive Plan \| Performance stock units
Stock-based compensation
Vesting period	3 years
Period of time used to calculate the compound annual growth rate	3 years
Granted (in shares)	40,014	46,774
Second Amended and Restated 2004 Stock Incentive Plan \| Performance stock units \| Minimum
Stock-based compensation
Percent of target shares a recipient may earn	0
Second Amended and Restated 2004 Stock Incentive Plan \| Performance stock units \| Maximum
Stock-based compensation
Percent of target shares a recipient may earn	2
Management Stock Purchase Plan \| Maximum
Stock-based compensation
Percentage of annual incentive bonus that may be used to purchase RSU's	50.00%
Management Stock Purchase Plan \| Class A
Stock-based compensation
Purchase price as percentage of fair market value of common stock on grant date	80.00%
Management Stock Purchase Plan \| Restricted stock units (RSUs)
Stock-based compensation
Minimum deferral period	3 years
Granted (in shares)	28,711	24,690
Fair value assumptions
Expected life (years)	3 years		3 years
Expected stock price volatility (as a percent)	33.70%		32.70%
Expected dividend yield (as a percent)	0.80%		0.75%
Risk-free interest rate (as a percent)	2.00%		0.30%
Weighted average grant-date fair value (in dollars per share) \| $ / shares	$ 47.26	$ 37.12
Management Stock Purchase Plan \| Restricted stock units (RSUs) \| Minimum
Stock-based compensation
Vesting period	3 years