Acquisitions (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended
Jan. 02, 2014 EOGA [Member]	May 10, 2013 Florida Chemical [Member]
Business Acquisition [Line Items]
Percent of membership interests acquired	100.00%
Consideration transferred, cash payments	$ 6.4
Consideration transferred, common stock issued, shares	94,354
Total purchase price		$ 106.4

Number of shares of equity interests issued or issuable to acquire entity.

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

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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