XML 21 R25.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt (Narrative) (Detail) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 9 Months Ended 1 Months Ended
Apr. 30, 2014
Mar. 31, 2015
Jun. 30, 2011
Jun. 30, 2014
Debt Instrument [Line Items]        
Short term loans payable   $ 9,697us-gaap_LongTermDebtCurrent   $ 8,343us-gaap_LongTermDebtCurrent
Revolving bank loans        
Debt Instrument [Line Items]        
Loans, maximum amount 60,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
     
Revolving loans, expiration date Apr. 30, 2019      
Bank loans outstanding   40,000us-gaap_LoansPayableToBank
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
   
Lines of credit, variable rate basis   LIBOR    
Revolving bank loans | Minimum        
Debt Instrument [Line Items]        
Adjusted LIBOR Loans at interest rates   2.22%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Revolving bank loans | Maximum        
Debt Instrument [Line Items]        
Adjusted LIBOR Loans at interest rates   2.32%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Term bank loans        
Debt Instrument [Line Items]        
Loans, maximum amount   70,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
   
Bank loans outstanding   64,000us-gaap_LoansPayableToBank
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
   
Adjusted LIBOR Loans at interest rates   2.28%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
   
Term loans, number of installments   19acet_TermLoansNumberOfInstallments
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
   
Short term loans payable   9,500us-gaap_LongTermDebtCurrent
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MediumTermNotesMember
   
Mortgage payable        
Debt Instrument [Line Items]        
Adjusted LIBOR Loans at interest rates   4.92%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
   
Mortgage payable     3,947us-gaap_SecuredDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
 
Mortgage payable, amortization period     20 years  
Open letter of credit        
Debt Instrument [Line Items]        
Letters of credit   $ 21us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= acet_OpenLetterOfCreditMember
  $ 105us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= acet_OpenLetterOfCreditMember