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Aggregate dividends paid during the period for each share of common stock outstanding.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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No definition available.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Increase in noncontrolling interest balance because of a business combination that occurred during the period.

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No definition available.

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

-Publisher SEC

-Name Regulation S-X (SX)

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate 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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-Publisher SEC

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-Name Regulation S-X (SX)

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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No definition available.

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The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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No definition available.

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Shareholders' Equity and Earnings per Share - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity [Line Items]
Cost of shares repurchased									$ 87,800	$ 27,239	$ 4,167
Number of shares authorized for repurchase					5,000,000					5,000,000
Number of shares to be repurchased under authorization plan	2,867,500								2,867,500
Cash dividends per common share	$ 0.32	$ 0.32	$ 0.32	$ 0.31	$ 0.31	$ 0.31	$ 0.31	$ 0.3	$ 1.27	$ 1.23	$ 1.19
Noncontrolling interest, increase from business combination									974
Buyback Program [Member]
Equity [Line Items]
Shares repurchased									2,000,000	132,500
Cost of shares repurchased									82,422	5,052
Tax Withholding Obligations [Member]
Equity [Line Items]
Shares repurchased									126,670	575,845	126,765
Cost of shares repurchased									5,378	22,187	4,167
Non-controlling Interests [Member]
Equity [Line Items]
Noncontrolling interest, increase from business combination									$ 974
Weidenhammer Chile Ltda. [Member]
Equity [Line Items]
Owned subsidiary, percentage	65.00%								65.00%
Percentage of ownership, small chilean tube and core business accounted	35.00%								35.00%