Maximum stock to be awarded as percentage of stock initially awarded under share based compensation plan.

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- Definition

Performance awards shares paid out.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options exercises in period intrinsic value.

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- Definition

Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants performance period.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options grants vesting period.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options weighted average contractual term.

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No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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- Definition

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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- Definition

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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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

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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- Definition

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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Stock-Based Compensation and Other Stock Plans - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net stock-based compensation expense	$ 7,300,000	$ 6,700,000
Cash received from stock purchase and option plan exercises	4,800,000	11,500,000
Tax benefit realized from exercise and vesting of share-based payment arrangements	$ 2,700,000	$ 5,100,000
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average contractual term (in years)	10 years
Weighted-average grant date fair value granted (in dollars per share)	$ 29.98	$ 30.21
Intrinsic value of stock exercised	$ 4,900,000	$ 11,000,000
Fair value of stock vested	15,700,000	$ 16,000,000
Unrecognized compensation cost related to non-vested award	$ 26,900,000
Cost expected to be recognized over weighted-average period, in years	2 years 2 months 12 days
Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average contractual term (in years)	3 years
Weighted-average grant date fair value granted (in dollars per share)	$ 155.92	$ 160.22
Unrecognized compensation cost related to non-vested award	$ 20,500,000
Cost expected to be recognized over weighted-average period, in years	2 years 2 months 11 days
Maximum stock percentage to be awarded	100.00%
Performance period for awards granted (in years)	3 years
Performance awards shares paid out (in shares)	32,114	50,182
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period for awards granted (in years)	1 year
Awards granted vesting period (in years)	2 years
Granted (in shares)			33,170	13,648	45,502
Cash-Settled Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average contractual term (in years)	10 years
Weighted-average grant date fair value granted (in dollars per share)	$ 25.89
Intrinsic value of stock exercised	$ 300,000	$ 2,000,000
Fair value of stock vested	0	$ 0
Unrecognized compensation cost related to non-vested award	$ 100,000
Cost expected to be recognized over weighted-average period, in years	2 years 2 months 11 days
Granted (in shares)	1,000
Stock-Settled SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value granted (in dollars per share)	$ 26.45	$ 24.71
Intrinsic value of stock exercised	$ 0	$ 600,000
Fair value of stock vested	2,100,000	$ 2,200,000
Unrecognized compensation cost related to non-vested award	$ 4,300,000
Cost expected to be recognized over weighted-average period, in years	2 years 2 months 11 days
Granted (in shares)	92,000
2011 Incentive Stock and Awards Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)	1,991,625
Non-employee Directors \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	7,605	6,975