Acquisitions (Details) (USD $)	0 Months Ended	3 Months Ended
Nov. 09, 2012	Mar. 31, 2013	Mar. 31, 2012
Acquisitions (Textual) [Abstract]
Aggregate purchase price, including assumed debt	$ 2,340,000,000
Summary of pro-forma consolidated financial information
Net sales		2,167,168,000	2,156,852,000
Net income		$ 116,185,000	$ 103,240,000
Net income per common share:
Basic (in dollars per share)		$ 1.13	$ 1.00
Diluted (in dollars per share)		$ 1.11	$ 0.98

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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