Quarterly report pursuant to Section 13 or 15(d)

Orange-Co Acquisition (Narrative) (Details)

v2.4.1.9
Orange-Co Acquisition (Narrative) (Details) (USD $)
6 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 02, 2014
acre
Business Acquisition [Line Items]      
Payments to acquire business $ 264,586,000us-gaap_PaymentsToAcquireBusinessesGross     
Orange-Co Acquisition [Member]      
Business Acquisition [Line Items]      
Area of land acquired     20,263alco_BusinessCombinationAreaOfLandAcquired
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Total purchase price     276,673,300alco_BusinessCombinationPurchasePrice
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Purchase price     281,607,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Cash acquired from acquisition     2,060,000us-gaap_CashAcquiredFromAcquisition
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Aggregate purchase price 264,587,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
   
Payments to acquire business 97,126,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
  147,500,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Maximum additional cash consideration     7,500,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Term debt assumed     500,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Certain other liabilities assumed     4,587,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Amount placed in escrow account     7,500,000us-gaap_BusinessCombinationConsiderationTransferredOther1
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
Revenue since acquisition 37,625,000us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
   
Gross profit since acquisition 7,786,000us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
   
Professional and legal fees 3,037,000us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
   
Orange-Co Acquisition [Member] | Refinanced Debt [Member]      
Business Acquisition [Line Items]      
Term debt assumed     91,371,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
/ us-gaap_DebtInstrumentAxis
= alco_RefinancedDebtMember
Working capital facility assumed     $ 27,775,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ us-gaap_BusinessAcquisitionAxis
= alco_OrangeCoAcquisitionMember
/ us-gaap_DebtInstrumentAxis
= alco_RefinancedDebtMember
Citree Holdings 1, LLC [Member]      
Business Acquisition [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired     51.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= alco_CitreeHoldings1LlcMember