The number of shares purchased by employees under the investment share purchase program.

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Share based compensation arrangement by share based payment award, fair value assumptions, estimated forfeiture rate.

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Share based compensation arrangement by share based payment award participants payment description.

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Employee tenure requirement to participate in plan.

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Shares held under escrow deposit.

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Shares held under escrow deposit market Value.

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Stock repurchase program, cumulative number of shares repurchased.

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Discount rate from fair value on purchase date that participants pay for shares.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Number of options vested.

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Weighted average grant-date fair value of options vested.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Common Stock and Share-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions			12 Months Ended
	Mar. 01, 2021	Jul. 03, 2019	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, contractual term			5 years 6 months 10 days
Other than options granted in period			17,821
Stock option outstanding			221,354	241,847
Options granted in period - weighted average fair value			$ 456.28	$ 153.31	$ 131.91
Weighted average fair value of stock awards			877.10
Weighted average exercise price			$ 310.38	$ 228.58
Expected dividends			0.00%	0.00%	0.00%
Estimated forfeiture rate for equity awards that do not vest on January 1st			13.00%
Total fair value of options vested in period			$ 6.3	$ 4.8	$ 2.5
Aggregate intrinsic value of stock options exercised in period			28.9	$ 45.9	$ 20.9
Unrecognized compensation costs			$ 31.0
Unrecognized compensation costs, weighted average period			2 years
Option vested, number of shares			42,038	45,860	33,205
Option vested, weighted average fair value			$ 227.40	$ 214.23	$ 188.63
Repurchase of shares			13,800,000
Stock repurchased during period			0	0	0
Dogfish Head Brewery
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business combination consideration		$ 336.0
Business acquisition cash transferred		$ 173.0
Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option outstanding			8,057
Performance-Based Awards \| Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option outstanding			21,992
Service-Based Awards \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period	10,935
Options granted in period - weighted average fair value	$ 457.25
Weighted average exercise price	$ 1,028.71
Non-Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period			1,422	4,410	4,779
Non-Employee Director \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, contractual term			10 years
Employee Stock Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period			18,998	21,992	26,507
Employee Stock Compensation Plan \| Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period			8,063
Employee Stock Compensation Plan \| Service-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Options granted in period			10,935
Employee Stock Compensation Plan \| Investment Share Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			5 years
Share based compensation arrangement by share based payment award participants payment description			Participants may pay for these shares either up front or through payroll deductions over an eleven-month period during the year of purchase.
Shares employees elected to purchase			4,954	9,127	7,901
Employee Stock Compensation Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Employee Stock Compensation Plan \| Minimum \| Investment Share Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requirement tenure of employee for investment share program, purchase shares at discount			1 year
Discount from current market value			0.00%
Employee Stock Compensation Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			5 years
Stock options, contractual term			10 years
Employee Stock Compensation Plan \| Maximum \| Investment Share Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount from current market value			40.00%
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options granted in period			12,867	33,403	22,509
Restricted Stock Units \| Service-Based Awards \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options granted in period	4,861
Weighted average fair value of stock awards	$ 1,028.71
Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			5 years
Common Class A \| Non-Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance			600,000
Shares available for grant			100,000
Common Class A \| Employee Stock Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance			6,700,000
Shares available for grant			1,000,000.0
Restricted Common Class A \| Dogfish Head Brewery
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business acquisition Shares issued		429,291
Business acquisition value of shares issued		$ 163.0
Shares held under escrow deposit		127,146
Shares held under escrow deposit market Value		$ 48.3