|
Long-Term Debt (Schedule of Outstanding Debt) (Details) (USD $)
|
3 Months Ended |
12 Months Ended |
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Dec. 31, 2014
|
Sep. 30, 2014
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| Debt Instrument [Line Items] |
|
|
| Principal balance outstanding |
$ 197,275,000us-gaap_LongTermDebt
|
$ 34,000,000us-gaap_LongTermDebt
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| Remaining available credit |
67,925,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
|
60,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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| Term Loan [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Principal balance outstanding |
|
34,000,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
| Term Loan [Member] | Fixed Rate Term Loan [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Principal balance outstanding |
125,000,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= alco_FixedRateTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
|
| Remaining available credit |
|
|
| Effective interest rate |
4.15%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_FixedRateTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
|
| Scheduled maturity date |
Nov. 01, 2029
|
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| Term Loan [Member] | Citree Term Loan [Member] |
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| Debt Instrument [Line Items] |
|
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| Principal balance outstanding |
500,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= alco_CitreeTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
|
| Remaining available credit |
4,500,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= alco_CitreeTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
|
| Effective interest rate |
5.49%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_CitreeTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
|
| Scheduled maturity date |
Feb. 01, 2029
|
|
| Term Loan [Member] | Variable Rate Term Loan [Member] |
|
|
| Debt Instrument [Line Items] |
|
|
| Principal balance outstanding |
57,500,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= alco_VariableRateTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
34,000,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= alco_VariableRateTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
| Remaining available credit |
|
|
| Effective interest rate |
1.74%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_VariableRateTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
2.40%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_VariableRateTermLoanMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LoansPayableMember
|
| Scheduled maturity date |
Nov. 01, 2029
|
Oct. 01, 2020
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| Line of Credit [Member] | Revolving Line of Credit [Member] |
|
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| Debt Instrument [Line Items] |
|
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| Principal balance outstanding |
|
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| Remaining available credit |
25,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= alco_RevolvingLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
60,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= alco_RevolvingLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
| Effective interest rate |
1.74%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_RevolvingLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
2.10%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_RevolvingLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
| Scheduled maturity date |
Nov. 01, 2019
|
Oct. 01, 2020
|
| Line of Credit [Member] | Working Capital Line of Credit [Member] |
|
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| Debt Instrument [Line Items] |
|
|
| Principal balance outstanding |
14,275,000us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= alco_WorkingCapitalLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
|
| Remaining available credit |
$ 38,425,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= alco_WorkingCapitalLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
|
| Effective interest rate |
1.90%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= alco_WorkingCapitalLineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
|
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| Scheduled maturity date |
Nov. 01, 2016
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