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Stock Option Plans - Additional information (Detail) - USD ($)			3 Months Ended
	Mar. 16, 2017	Mar. 17, 2016	Mar. 31, 2017	Mar. 31, 2016
Stock Option Plans [Line Items]
Compensation expense related to stock option grants			$ 4,100,000	$ 3,300,000
Total intrinsic value of options exercised			16,600,000	$ 1,700,000
Total unrecognized compensation cost related to nonvested options			$ 56,300,000
Weighted average period, years			4 years
Long Term Incentive Plan [Member]
Stock Option Plans [Line Items]
Maximum number of shares available			400,000
Shares available for grant			2,300,000
Long Term Incentive Plan [Member] | Officer and Key Employees [Member]
Stock Option Plans [Line Items]
Shares available for grant	1,650,400	2,576,700
Stock options granted, exercise percentage, on the third anniversary date of the grant	34.00%	34.00%
Stock options granted, exercise percentage, on the fourth anniversary date of the grant	33.00%	33.00%
Stock options granted, exercise percentage, on the fifth anniversary date of the grant	33.00%	33.00%
Long Term Incentive Plan [Member] | Maximum [Member]
Stock Option Plans [Line Items]
Maximum period for the exercise of stock options, years			7 years
Long Term Incentive Plan [Member] | Minimum [Member]
Stock Option Plans [Line Items]
Minimum exercise price of stock options, percent of fair market value of a share of common stock on the date of grant			100.00%
Period of service from grant date stock options awarded not subject to forfeiture			2 years	2 years
Long Term Incentive Plan [Member] | Minimum [Member] | Executive Officer [Member]
Stock Option Plans [Line Items]
Minimum age of employee with not subject to award forfeiture on condition compliance			55 years	55 years
Performance-Based Restricted Stock [Member]
Stock Option Plans [Line Items]
Maximum number of shares granted during any fiscal year to any person			100,000
Options or Stock Appreciation Rights [Member]
Stock Option Plans [Line Items]
Maximum number of shares granted during any fiscal year to any person			200,000
Cash Settled Performance Shares [Member] | Performance-Based Restricted Stock [Member]
Stock Option Plans [Line Items]
Maximum amount payable for the shares granted during any fiscal year to any person			$ 5,000,000
Stock Settled Performance Shares [Member] | Performance-Based Restricted Stock [Member]
Stock Option Plans [Line Items]
Maximum number of shares granted during any fiscal year to any person			100,000
Black-Scholes Option Pricing Model [Member]
Stock Option Plans [Line Items]
Weighted average fair value per option for all options			$ 11.42	$ 8.45

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Stock Option Plans [Line Items]

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Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB
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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 highest quantity of shares an employee can purchase under the plan per period.

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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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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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Value, after forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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