Share-Based Compensation - Summary of SAR Activity (Detail) (Stock Appreciation Rights (SARs) [Member], USD $)	6 Months Ended
Jun. 28, 2014
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at beginning of year	1,402,784
Shares, Granted	168,314
Shares, Exercised	(145,077)
Shares, Forfeited	(14,936)
Shares, Outstanding at end of period	1,411,085
Shares, Exercisable at end of period	705,246
Weighted-Average Exercise Price, Outstanding at beginning of year	$ 36.36
Weighted-Average Exercise Price, Granted	$ 74.72
Weighted-Average Exercise Price, Exercised	$ 35.21
Weighted-Average Exercise Price, Forfeited	$ 48.62
Weighted-Average Exercise Price, Outstanding at end of year	$ 40.92
Weighted-Average Exercise Price, Exercisable at end of year	$ 32.96
Intrinsic value of exercised SARs	$ 5,510,000

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Section 50

-Paragraph 2

-Subparagraph (d)(2)

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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- Definition

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

+ References

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- Definition

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

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- Definition

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

+ References

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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-Name Regulation S-X (SX)

-Number 210

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