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Long-Term Indebtedness (Details) (USD $)
In Thousands, unless otherwise specified |
Feb. 28, 2015
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Aug. 31, 2014
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| Debt Instrument [Line Items] | ||
| Total Senior Indebtedness | $ 586,750us-gaap_LongTermDebt | $ 390,000us-gaap_LongTermDebt |
| Less: current maturities of long-term debt | (6,750)us-gaap_LongTermDebtCurrent | (4,500)us-gaap_LongTermDebtCurrent |
| Total long-term debt, less current maturities | 580,000us-gaap_LongTermDebtNoncurrent | 385,500us-gaap_LongTermDebtNoncurrent |
| Line of Credit | ||
| Debt Instrument [Line Items] | ||
| Total Senior Indebtedness |
286,750us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
90,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
| Line of Credit | Senior Credit Facility - Revolver | ||
| Debt Instrument [Line Items] | ||
| Total Senior Indebtedness |
199,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = atu_SeniorCreditFacilityRevolverMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
0us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = atu_SeniorCreditFacilityRevolverMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
| Line of Credit | Senior Credit Facility - Term Loan | ||
| Debt Instrument [Line Items] | ||
| Total Senior Indebtedness |
87,750us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = atu_SeniorCreditFacilityTermLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
90,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = atu_SeniorCreditFacilityTermLoanMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
| Senior Notes | 5.625% Senior Notes | ||
| Debt Instrument [Line Items] | ||
| Total Senior Indebtedness |
$ 300,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = atu_FivePointSixTwoFiveSeniorNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
$ 300,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = atu_FivePointSixTwoFiveSeniorNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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