Joint Venture Investment Summary of Pro Forma information (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Business Combinations [Abstract]
Sales from April 4, 2013 to December 31, 2013	$ 145,719	$ 146,000
Net Income from April 4, 2013 to December 31, 2013	5,435
Pro forma consolidated sales		1,742,348	1,683,776
Pro forma consolidated net income		$ 372,039	$ 271,589

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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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