Debt Including Capital Lease Obligations - Other Debt (Details) $ in Thousands	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014 USD ($) ha
Debt Instrument [Line Items]
Hectares of land \| ha		700
Farms purchase price		$ 10,000
Cash paid for farms		3,000
Number of annual debt installments	4 years
Other Debt Obligations
Debt Instrument [Line Items]
Amount financed for farms purchase		$ 6,541
Effective interest rate		8.00%
Land [Member]
Debt Instrument [Line Items]
Hectares of land \| ha		450

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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