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v2.4.1.9

Long-Term Debt (Details Textual) (USD $) | 12 Months Ended | 0 Months Ended |
--- | --- | --- | ---
May 31, 2014 | Sep. 19, 2013 | May 31, 2013
Debt Instrument [Line Items] |  |  |
Senior secured term loan facility |  | $ 100,000,000 ango_SecuredLongTermDebtInitialBorrowingCapacity |
Senior secured revolving credit facility |  | 100,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity |
Bank credit agreement maturity period | P5Y |  |
Quarterly percentage repayment of term facility year one | 5.00%ango_PercentageOfQuarterlyRepaymentOfTermFacilityYearOne |  |
Quarterly percentage repayment of term facility year two | 5.00%ango_PercentageOfQuarterlyRepaymentOfTermFacilityYearTwo |  |
Quarterly percentage repayment of term facility year three | 10.00%ango_PercentageOfQuarterlyRepaymentOfTermFacilityYearThree |  |
Quarterly percentage repayment of term facility year four | 15.00%ango_PercentageOfQuarterlyRepaymentOfTermFacilityYearFour |  |
Quarterly percentage repayment of term facility year five | 65.00%ango_PercentageOfQuarterlyRepaymentOfTermFacilityYearFive |  |
Percentage of increase in interest | 2.00%ango_DebtInstrumentIncreaseInInterestRateInCaseOfDefault |  |
Notional amount of interest rate swap agreement | 100,000,000 us-gaap_DerivativeAssetNotionalAmount |  |
Fixed interest rate payments | 0.74%us-gaap_DerivativeFixedInterestRate |  |
Loans payable, noncurrent | 91,250,000 us-gaap_LongTermLoansPayable |  | 135,000,000 us-gaap_LongTermLoansPayable
Ratio for debt service coverage | 1.35 ango_DebtServiceCoverageRatio |  |
Ratio of indebtedness to consolidated EBITDA | 3.75 ango_RatioofIndebtednesstoConsolidatedEBITDA |  |
Line of Credit [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Percentage of increases leverage ratio base rate, minimum | 1.50%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_ShortTermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Percentage of increases leverage ratio base rate, maximum | 2.25%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_ShortTermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Loans payable, noncurrent |  |  | 46,410,000 us-gaap_LongTermLoansPayable / us-gaap_LongtermDebtTypeAxis = us-gaap_RevolvingCreditFacilityMember
Term Loan [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Percentage of increases leverage ratio base rate, minimum | 0.50%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = ango_TermLoanMember |  |
Percentage of increases leverage ratio base rate, maximum | 1.25%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = ango_TermLoanMember |  |
Loans Payable | 96,250,000 us-gaap_LoansPayable / us-gaap_LongtermDebtTypeAxis = ango_TermLoanMember |  |
Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Commitment fee percentage | 0.35%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Commitment fee percentage | 0.20%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Letter of Credit [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility borrowing capacity |  | 20,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember |
Swingline Loans [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility borrowing capacity |  | 5,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = ango_SwinglineLoansMember |
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Borrowing under Revolving Facility |  | $ 41,400,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |

X
- Definition Debt instrument increase in interest rate in case of default. + References No definition available. + Details
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- Definition Debt service coverage ratio. + References No definition available. + Details
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- Definition Percentage of quarterly repayment of term facility year five. + References No definition available. + Details
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- Definition Percentage of quarterly repayment of term facility year four. + References No definition available. + Details
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- Definition Percentage of quarterly repayment of term facility year one. + References No definition available. + Details
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- Definition Percentage of quarterly repayment of term facility year three. + References No definition available. + Details
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- Definition Percentage of quarterly repayment of term facility year two. + References No definition available. + Details
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- Definition Total initial amount borrowed under secured long term debt facility. + References No definition available. + Details
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- Definition Maximum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Minimum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Disclosure of timing of required repayments, sinking fund requirements, and other redeemable securities at fixed or determinable prices and dates in the five years immediately following the date of the latest balance sheet presented in the financial statements, and the amount thereafter to fully repay the principal of long-term debt. These disclosures may be made either on an individual debt or security basis, by type of debt or security basis, or on a combined basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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