Capital Stock (Tables)

12 Months Ended

Dec. 26, 2020

Schedule of Weighted Average Valuation Assumptions Used to Calculate Fair Value Granted

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of options granted and the associated weighted-average grant-date fair values:

	For the Years Ended
	December 26, 2020			December 28, 2019			December 29, 2018
Expected dividend yield		0	%		0	%		0	%
Expected stock price volatility		29	%		28	%		27	%
Risk-free interest rate		0.8	%		2.3	%		2.6	%
Expected life of options		5.3		5.4 years			3.0 years
Weighted-average grant-date fair value	$	17.84		$	24.32		$	15.88

Summary of Restricted Stock Awards and Restricted Stock Unit Activity

The following table summarizes our restricted stock awards and restricted stock unit activity for the three years ended December 26, 2020:

	Shares			Weighted Average Price
Balance at December 30, 2017		153,727		$	59.94
Granted		89,798		$	73.51
Vested		(45,707	)	$	62.56
Cancelled		(27,081	)	$	75.39
Balance at December 29, 2018		170,737		$	63.94
Granted		92,396		$	81.92
Vested		(41,586	)	$	55.72
Cancelled		(44,056	)	$	58.03
Balance at December 28, 2019		177,491		$	76.70
Granted		83,875		$	64.66
Vested		(27,477	)	$	71.25
Cancelled		(16,154	)	$	76.44
Balance at December 26, 2020		217,735		$	72.77

Summary of Stock Option Activity

The following table summarizes our stock option activity for the three years ended December 26, 2020:

	Shares			Option Price per Share		Weighted Average Price		Weighted Average Remaining Terms (years)		Aggregate Intrinsic Value
Balance at December 30, 2017		122,547		$5.67 – $82.59		$	57.74
Granted		81,995		$68.93 – $82.94		$	73.84
Exercised		(15,113	)	$5.67 – $78.64		$	39.38
Cancelled		(960	)		$72.55	$	72.55
Balance at December 29, 2018		188,469		$7.74 – $82.94		$	66.14
Granted		44,025		$73.72 – $84.93		$	81.84
Exercised		(38,009	)	$7.74 – $78.76		$	58.96
Cancelled		(12,773	)	$41.59 – $82.94		$	75.52
Balance at December 28, 2019		181,712		$41.59 – $82.94		$	70.78
Granted		109,352		$61.68 – $83.06		$	63.25
Exercised		(31,521	)	$41.59 – $82.94		$	50.77
Cancelled		(8,764	)	$61.68 – $74.21		$	65.24
Balance at December 26, 2020		250,779		$41.59 – $84.93		$	70.21		4.9	$	4,847,742
Options exercisable at December 26, 2020		78,066		$41.59 – $84.93		$	72.06		2.5	$	1,366,281

Summary of Shares Repurchase and Cancellation

The following table summarizes the repurchase and cancellation of common stock:

	For the Years Ended
	December 26, 2020		December 28, 2019		December 29, 2018
Shares repurchased and cancelled		23,360		22,380		26,280
Total cost of shares repurchased and cancelled (in millions)	$	1.9	$	1.9	$	2.0
Average price per share	$	81.12	$	87.26	$	74.79

The following table summarizes the repurchase and cancellation of common stock:

	For the Years Ended
	December 26, 2020		December 28, 2019		December 29, 2018
Shares repurchased and cancelled		439,275		499,564		622,223
Total cost of shares repurchased and cancelled (in millions)	$	36.8	$	39.4	$	43.4
Average price per share	$	83.73	$	78.84	$	69.73

Performance Restricted Stock [Member]

Schedule of Weighted Average Valuation Assumptions Used to Calculate Fair Value Granted

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of total shareholder return performance-based restricted stock awards and performance-based restricted stock units granted:

	For the Years Ended
	December 26, 2020			December 28, 2019
Share price	$	61.68		$	82.03
Expected dividend yield		0.0	%		0.0	%
Expected stock price volatility		31.5	%		27.7	%
Risk-free interest rate		0.9	%		2.5	%
Expected life	2.8 years			2.8 years