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Derivatives (Details 1) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
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Dec. 31, 2014
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Mar. 31, 2014
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| Derivatives, Fair Value [Line Items] | |||
| Commodity derivative assets | $ 21,327us-gaap_DerivativeFairValueOfDerivativeAsset | $ (10,981)us-gaap_DerivativeFairValueOfDerivativeAsset | $ (88,498)us-gaap_DerivativeFairValueOfDerivativeAsset |
| Commodity derivative liabilities | 0us-gaap_DerivativeFairValueOfDerivativeLiability | 0us-gaap_DerivativeFairValueOfDerivativeLiability | 0us-gaap_DerivativeFairValueOfDerivativeLiability |
| Commodity derivative assets - current | 86,824us-gaap_CommodityContractAssetCurrent | 92,771us-gaap_CommodityContractAssetCurrent | 119,330us-gaap_CommodityContractAssetCurrent |
| Commodity derivative assets - noncurrent | 243us-gaap_CommodityContractAssetNoncurrent | 507us-gaap_CommodityContractAssetNoncurrent | 1,365us-gaap_CommodityContractAssetNoncurrent |
| Commodity derivative liabilities - current | (55,401)us-gaap_DerivativeLiabilitiesCurrent | (64,075)us-gaap_DerivativeLiabilitiesCurrent | (32,153)us-gaap_DerivativeLiabilitiesCurrent |
| Commodity derivative liabilities - noncurrent | (2,084)us-gaap_DerivativeLiabilitiesNoncurrent | (3,318)us-gaap_DerivativeLiabilitiesNoncurrent | (734)us-gaap_DerivativeLiabilitiesNoncurrent |
| Commodity | |||
| Derivatives, Fair Value [Line Items] | |||
| Commodity derivative assets | 61,969us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
56,633us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
92,915us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities | (71,908)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(110,394)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(147,898)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Cash collateral | 39,521us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
79,646us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
142,791us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Total | 29,582us-gaap_DerivativeFairValueAmountOffsetAgainstCollateralNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
25,885us-gaap_DerivativeFairValueAmountOffsetAgainstCollateralNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
87,808us-gaap_DerivativeFairValueAmountOffsetAgainstCollateralNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity | Commodity derivative assets - current | |||
| Derivatives, Fair Value [Line Items] | |||
| Commodity derivative assets | 60,071us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
49,847us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
86,512us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities | (12,768)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(36,722)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(109,973)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Cash collateral | 39,521us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
79,646us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
142,791us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative assets - current | 86,824us-gaap_CommodityContractAssetCurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
92,771us-gaap_CommodityContractAssetCurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
119,330us-gaap_CommodityContractAssetCurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity | Commodity derivative assets - noncurrent | |||
| Derivatives, Fair Value [Line Items] | |||
| Commodity derivative assets | 254us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
545us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
1,543us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities | (11)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(38)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(178)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Cash collateral | 0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative assets - noncurrent | 243us-gaap_CommodityContractAssetNoncurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
507us-gaap_CommodityContractAssetNoncurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
1,365us-gaap_CommodityContractAssetNoncurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeAssetsNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity | Commodity derivative liabilities - current | |||
| Derivatives, Fair Value [Line Items] | |||
| Commodity derivative assets | 1,615us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
6,123us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
4,552us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities | (57,016)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(70,198)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(36,705)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Cash collateral | 0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities - current | (55,401)us-gaap_DerivativeLiabilitiesCurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(64,075)us-gaap_DerivativeLiabilitiesCurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(32,153)us-gaap_DerivativeLiabilitiesCurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesCurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity | Commodity derivative liabilities - noncurrent | |||
| Derivatives, Fair Value [Line Items] | |||
| Commodity derivative assets | 29us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
118us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
308us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities | (2,113)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(3,436)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
(1,042)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Cash collateral | 0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
0us-gaap_DerivativeCollateralRightToReclaimCash / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
| Commodity derivative liabilities - noncurrent | $ (2,084)us-gaap_DerivativeLiabilitiesNoncurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
$ (3,318)us-gaap_DerivativeLiabilitiesNoncurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
$ (734)us-gaap_DerivativeLiabilitiesNoncurrent / us-gaap_BalanceSheetLocationAxis = ande_CommodityDerivativeLiabilitiesNoncurrentMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityContractMember |
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- Definition
Carrying amount as of the balance sheet date of the asset arising from commodity contracts such as futures contracts tied to the movement of a particular commodity, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of the asset arising from commodity contracts such as futures contracts tied to the movement of a particular commodity, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were offset against collateral under a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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