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Debt - Additional Information (Detail) (USD $) | 0 Months Ended |  |
--- | --- | --- | ---
Mar. 25, 2015 | Mar. 31, 2015 | Mar. 25, 2015 Extension
Credit Facility | Line of Credit | Revolving Credit Facility |  |  |
Debt Instrument |  |  |
Credit facility maximum borrowing capacity | $ 400,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_RevolvingCreditFacilityEndinginMarch2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  | $ 400,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_RevolvingCreditFacilityEndinginMarch2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Credit facility, number of one-year extensions | 2 tdc_LineOfCreditFacilityNumberOfOneYearExtensions / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_RevolvingCreditFacilityEndinginMarch2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  | 2 tdc_LineOfCreditFacilityNumberOfOneYearExtensions / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_RevolvingCreditFacilityEndinginMarch2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Credit facility, duration of extension term (in years) | 1 year |  |
Credit facility outstanding balance |  | 0 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_RevolvingCreditFacilityEndinginMarch2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
Credit facility borrowing capacity |  | 400,000,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_RevolvingCreditFacilityEndinginMarch2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
Existing Revolving Credit Facility Prior to March 2015 | Line of Credit | Revolving Credit Facility |  |  |
Debt Instrument |  |  |
Revolving credit agreement period (in years) | 5 years |  |
Credit facility maximum borrowing capacity | 300,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_FiveYearRevolvingCreditFacilityestaiblishedPriortoMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  | 300,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_FiveYearRevolvingCreditFacilityestaiblishedPriortoMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Payment of credit facility | 220,000,000 us-gaap_RepaymentsOfLinesOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = tdc_FiveYearRevolvingCreditFacilityestaiblishedPriortoMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
New Senior Unsecured Term Loan | Senior Unsecured Term Loan |  |  |
Debt Instrument |  |  |
Term loan, face amount | 600,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = tdc_SeniorUnsecuredFiveYearTermLoanissuedMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  | 600,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = tdc_SeniorUnsecuredFiveYearTermLoanissuedMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Term of loan, years | 5 years |  |
Principal outstanding |  | 600,000,000 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = tdc_SeniorUnsecuredFiveYearTermLoanissuedMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Interest rate |  | 1.4375%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = tdc_SeniorUnsecuredFiveYearTermLoanissuedMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Unsecured Term Loan Prior to March 2015 | Senior Unsecured Term Loan |  |  |
Debt Instrument |  |  |
Payment of term loan | $ 247,000,000 us-gaap_RepaymentsOfDebt / us-gaap_DebtInstrumentAxis = tdc_SeniorUnsecuredTermLoanIssuedPriortoMarch2015Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |

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- Definition Line of Credit Facility Duration of Extension Term + References No definition available. + Details
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- Definition Line of Credit Facility Number of One Year Extensions + References No definition available. + Details
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: 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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- Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: 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) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + 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 Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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