XML 70 R57.htm IDEA: XBRL DOCUMENT
v3.19.1

Derivatives (Outstanding Interest Rate Derivatives) (Details) - Long-term $ in Millions | Mar. 31, 2019 USD ($)
--- | ---
Not Accounted for as Hedge | Collar |
Derivative [Line Items] |
Initial notional amount | $ 23.0
Interest rate | 1.90%
Not Accounted for as Hedge | Swap 3.5% to 4.8% |
Derivative [Line Items] |
Initial notional amount | $ 40.0
Not Accounted for as Hedge | Swap 3.5% to 4.8% | Minimum |
Derivative [Line Items] |
Interest rate | 3.50%
Not Accounted for as Hedge | Swap 3.5% to 4.8% | Maximum |
Derivative [Line Items] |
Interest rate | 4.80%
Accounted for as Hedge | Swap 1.2% |
Derivative [Line Items] |
Initial notional amount | $ 50.0
Interest rate | 1.20%
Accounted for as Hedge | Swap 1.8% |
Derivative [Line Items] |
Initial notional amount | $ 20.0
Interest rate | 1.80%
Accounted for as Hedge | Swap 2.6% |
Derivative [Line Items] |
Initial notional amount | $ 10.0
Interest rate | 2.60%
Accounted for as Hedge | Swap 2.7% |
Derivative [Line Items] |
Initial notional amount | $ 20.0
Interest rate | 2.70%
Accounted for as Hedge | Swap 2.6% |
Derivative [Line Items] |
Initial notional amount | $ 40.0
Interest rate | 2.60%
Accounted for as Hedge | Swap 2.5% |
Derivative [Line Items] |
Initial notional amount | $ 25.0
Interest rate | 2.50%
Accounted for as Hedge | Swap 2.5% |
Derivative [Line Items] |
Initial notional amount | $ 50.0
Interest rate | 2.50%
Accounted for as Hedge | Swap 2.5% |
Derivative [Line Items] |
Initial notional amount | $ 100.0
Interest rate | 2.50%
Accounted for as Hedge | Swap 2.5% |
Derivative [Line Items] |
Initial notional amount | $ 50.0
Interest rate | 2.50%
Accounted for as Hedge | Swap 2.5% |
Derivative [Line Items] |
Initial notional amount | $ 50.0
Interest rate | 2.50%

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of an entity's outstanding debt that is designated as a hedged item in cash flow, fair value, or net investment hedge. + References No definition available. + Details
Name: | us-gaap_PercentageOfDebtHedgedByInterestRateDerivatives
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PositionAxis=us-gaap_LongMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwaptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapSevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapTenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ande_InterestRateSwapElevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |