XML 82 R2.htm IDEA: XBRL DOCUMENT
v3.23.1

Pay vs Performance Disclosure - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure [Table] |  |  |
Pay vs Performance [Table Text Block] | PAY VERSUS PERFORMANCE TABLE The information provided below is mandated by the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 402(v) of Regulation S-K, which require that we, among other things, report the amount of “compensation actually paid” to our named executive officers for the last three fiscal years and compare those amounts to certain mandated performance metrics. The “compensation actually paid” to our named executive officers is calculated in accordance with applicable SEC rules and does not reflect the actual amount of compensation earned by or paid to our named executive officers during each covered fiscal year. Teradata is committed to rewarding talent that drives our organizational success. In 2022, we continued to emphasize a culture of high performance, and our talent and rewards strategies centered on incentive programs that provided rewards based on meaningful demonstrations of business achievements and individual performance contributions to the Company. The Compensation and People Committee has designed the compensation program for our named executive officers to reflect the importance placed on Company and business achievement in a high-performing culture. To that end, our core compensation program is closely aligned with Company performance and consists of base salary, an annual cash incentive, and long-term equity incentives based on both performance and service over a 3-year period. Please refer to the Compensation Discussion and Analysis section of this proxy statement for details regarding how the Compensation and People Committee links the compensation paid to our named executive officers to our corporate performance.
Year |  | Summary Compen- sation Table Total for PEO (Steve McMillan) ($) |  |  | Summary Compen- sation Table Total for PEO (Victor Lund) ($) |  |  | Compen- sation Actually Paid to PEO (1) (Steve McMillan) ($) |  |  | Compen- sation Actually Paid to PEO (1) (Victor Lund) ($) |  |  | Average Summary Compen- sation Table Total for Non-PEO NEOs ($) |  |  | Average compen- sation Actually Paid to Non-PEO NEOs (2) ($) |  |  | Value of Initial Fixed $100 Investment Based on: |  |  | Net Income (in millions) (6) ($) |  |  | Company- Selected Measure (Total Public Cloud ARR in millions) (7) ($) |
| Total Shareholder Return (4) ($) |  |  | Peer Group Total Shareholder Return (5) ($) |
2022 |  |  | 15,035,353 |  |  |  | n/a |  |  |  | 10,958,172 |  |  |  | n/a |  |  |  | 4,123,973 |  |  |  | 2,642,464 |  |  |  | 125.74 |  |  |  | 134.82 |  |  |  | 33 |  |  |  | 357 |
2021 |  |  | 11,570,638 |  |  |  | n/a |  |  |  | 19,339,239 |  |  |  | n/a |  |  |  | 6,081,512 |  |  |  | 8,485,757 |  |  |  | 158.65 |  |  |  | 172.92 |  |  |  | 147 |  |  |  | 202 |
2020 |  |  | 14,329,531 |  |  |  | 1,064,957 |  |  |  | 15,652,678 |  |  |  | (400,670 | ) |  |  | 4,516,638 |  |  |  | 3,241,121 |  |  |  | 83.94 |  |  |  | 142.21 |  |  |  | 129 |  |  |  | 106 |
(1) | Compensation actually paid (“CAP”) was calculated by beginning with the total amount reported in the Summary Compensation Table (the “SCT”) for the applicable year, (i) subtracting the grant date fair value of stock awards reported in the Stock Award column of the SCT (“Stock Awards”), and (ii) adding the change in fair value of stock awards for the applicable year. Fair value amounts were computed in a manner consistent with the fair value methodology used to account for share-based payments in our financial statements under generally accepted accounting principles.
Following is a reconciliation of the SCT total and the CAP for Mr. McMillan, our current CEO, for each of the applicable years.
CEO: Steve McMillan |
Year |  | SCT Total ($) |  |  | Subtract Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT ($) |  |  | Add Change in Fair Value of Stock Awards ($) |  |  | CAP ($) |
2022 |  |  | 15,035,353 |  |  |  | (13,079,278 | ) |  |  | 9,002,097 |  |  |  | 10,958,172 |
2021 |  |  | 11,570,638 |  |  |  | (9,261,606 | ) |  |  | 17,030,207 |  |  |  | 19,339,239 |
2020 |  |  | 14,329,531 |  |  |  | (12,539,602 | ) |  |  | 13,862,749 |  |  |  | 15,652,678 |
Following is a table that reflects the change in fair value of stock awards for Mr. McMillan, our current CEO, for each of the applicable years.
CEO: Change in Fair Value of Stock Awards (S. McMillan) |
Year |  | Year-End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Year-over- Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year ($) |  |  | Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year ($) |  |  | Adjustments for Stock Awards that Failed to Meet Performance Conditions ($) |  |  | Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value ($) |  |  | Total Change in Fair Value on Stock Awards Included in CAP (3) ($) |
2022 |  |  | 9,256,525 |  |  |  | (152,281 | ) |  |  | (102,147 | ) |  |  | — |  |  |  | 0 |  |  |  | 0 |  |  |  | 9,002,097 |
2021 |  |  | 9,067,464 |  |  |  | 4,601,313 |  |  |  | 3,361,431 |  |  |  | — |  |  |  | 0 |  |  |  | 0 |  |  |  | 17,030,207 |
2020 |  |  | 11,925,318 |  |  |  | — |  |  |  | 0 |  |  |  | 1,937,431 |  |  |  | 0 |  |  |  | 0 |  |  |  | 13,862,749 |
Following is a reconciliation of the SCT total and the CAP for our former CEO, Mr. Lund, for each of the applicable years.
CEO: Victor Lund
Year |  | SCT Total ($) |  | Subtract Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT ($) |  | Add Change in Fair Value of Stock Awards ($) |  | CAP ($)
2022 |  | n/a |  | n/a |  | n/a |  | n/a
2021 |  | n/a |  | n/a |  | n/a |  | n/a
2020 |  | 1,064,957 |  | 0 |  | (1,465,627) |  | (400,670)
Following is a table that reflects the change in fair value of stock awards for Mr. Lund, our former CEO, for each of the applicable years.
CEO: Change in Fair Value of Stock Awards (V. Lund) |
Year |  | Year-End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Year-over- Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year ($) |  |  | Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year ($) |  |  | Adjustments for Stock Awards that Failed to Meet Performance Conditions ($) |  |  | Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value ($) |  |  | Total Change in Fair Value on Stock Awards Included in CAP (3) ($) |
2022 |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
2021 |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
2020 |  |  | (54,827 | ) |  |  | 0 |  |  |  | (1,410,800 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (1,465,627 | )
(2) | CAP for the other named executive officers was calculated in the same manner as described above for the CEO, except the amounts were averaged for each year. Following is a reconciliation of the average SCT total and the average CAP for the named executive officers, other than the CEO, for each of the applicable years. The non-CEO named executive officers included in the average for each year are as follows:
| a) | 2022: Claire Bramley, Hillary Ashton, Todd Cione, and Margaret Treese
| b) | 2021: Claire Bramley, Mark Culhane (former CFO), Hillary Ashton, Todd Cione, and Kathleen Cullen-Cote
| c) | 2020: Mark Culhane (former CFO), Dan Harrington (former CSO), Hillary Ashton, Kathleen Cullen-Cote, and Scott Brown (former CRO)
Other Named Executive Officers |
Year |  | SCT Total ($) |  |  | Subtract Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT ($) |  |  | Add Change in Fair Value of Stock Awards ($) |  |  | CAP ($) |
2022 |  |  | 4,123,973 |  |  |  | (3,165,159) |  |  |  | 1,683,650 |  |  |  | 2,642,464 |
2021 |  |  | 6,081,512 |  |  |  | (4,832,831) |  |  |  | 7,237,076 |  |  |  | 8,485,757 |
2020 |  |  | 4,516,638 |  |  |  | (3,463,175) |  |  |  | 2,187,658 |  |  |  | 3,241,121 |
Following is a table that reflects the average change in fair value of stock awards for the other named executive officers, for each of the applicable years.
Other Named Executive Officers: Average Change in Fair Value of Stock Awards |
Year |  | Year-End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Year-over- Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year ($) |  |  | Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year ($) |  |  | Adjustments for Stock Awards that Failed to Meet Performance Conditions ($) |  |  | Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value ($) |  |  | Total Change in Fair Value on Stock Awards Included in CAP (3) ($) |
2022 |  |  | 2,240,060 |  |  |  | (495,560) |  |  |  | (60,850) |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 1,683,650 |
2021 |  |  | 4,649,235 |  |  |  | 1,307,346 |  |  |  | 1,235,320 |  |  |  | 1,188,741 |  |  |  | (1,143,566) |  |  |  | 0 |  |  |  | 7,237,076 |
2020 |  |  | 3,473,708 |  |  |  | (296,153) |  |  |  | (200,655) |  |  |  | 0 |  |  |  | (789,242) |  |  |  | 0 |  |  |  | 2,187,658 |
(3) | The fair value amounts were calculated using our stock price on the last day of each fiscal year or the date of vesting, as applicable, and the probable level of achievement of the performance goals as of the end of each year.
(4) | Teradata shareholder return (“TSR”) represents the cumulative investment return of an initial fixed $100 investment in our common stock on December 31, 2019, assuming reinvestment of all dividends. Teradata TSR reflected in the table above may not be indicative of future performance.
(5) | Peer group TSR represents the cumulative investment return of an initial fixed $100 investment in the S&P Information Technology Index on December 31, 2019, assuming reinvestment of all dividends.
(6) | Reflects net income, as reported in our Form 10-K for the applicable year.
(7) | Following is a list of the most important financial measures used by Teradata to link CAP to performance for the most recently completed fiscal year:
| a) | Public Cloud ARR
| b) | Total ARR Growth
| c) | Non-GAAP Operating Margin
| d) | Free Cash Flow
Of the goals listed above, we consider Public Cloud ARR to be the most important financial performance measure (that is not otherwise required to be disclosed in the table) used to link CAP to company performance and therefore include it as the Company-Selected Measure in the table above. |  |
Company Selected Measure Name | TotalPublicCloudARR |  |
Named Executive Officers, Footnote [Text Block] |
| a) | 2022: Claire Bramley, Hillary Ashton, Todd Cione, and Margaret Treese
| b) | 2021: Claire Bramley, Mark Culhane (former CFO), Hillary Ashton, Todd Cione, and Kathleen Cullen-Cote
| c) | 2020: Mark Culhane (former CFO), Dan Harrington (former CSO), Hillary Ashton, Kathleen Cullen-Cote, and Scott Brown (former CRO)
Peer Group Issuers, Footnote [Text Block] | Peer group TSR represents the cumulative investment return of an initial fixed $100 investment in the S&P Information Technology Index on December 31, 2019, assuming reinvestment of all dividends. |  |
Adjustment To PEO Compensation, Footnote [Text Block] | Following is a reconciliation of the SCT total and the CAP for Mr. McMillan, our current CEO, for each of the applicable years.
CEO: Steve McMillan |
Year |  | SCT Total ($) |  |  | Subtract Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT ($) |  |  | Add Change in Fair Value of Stock Awards ($) |  |  | CAP ($) |
2022 |  |  | 15,035,353 |  |  |  | (13,079,278 | ) |  |  | 9,002,097 |  |  |  | 10,958,172 |
2021 |  |  | 11,570,638 |  |  |  | (9,261,606 | ) |  |  | 17,030,207 |  |  |  | 19,339,239 |
2020 |  |  | 14,329,531 |  |  |  | (12,539,602 | ) |  |  | 13,862,749 |  |  |  | 15,652,678 |
Following is a table that reflects the change in fair value of stock awards for Mr. McMillan, our current CEO, for each of the applicable years.
CEO: Change in Fair Value of Stock Awards (S. McMillan) |
Year |  | Year-End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Year-over- Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year ($) |  |  | Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year ($) |  |  | Adjustments for Stock Awards that Failed to Meet Performance Conditions ($) |  |  | Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value ($) |  |  | Total Change in Fair Value on Stock Awards Included in CAP (3) ($) |
2022 |  |  | 9,256,525 |  |  |  | (152,281 | ) |  |  | (102,147 | ) |  |  | — |  |  |  | 0 |  |  |  | 0 |  |  |  | 9,002,097 |
2021 |  |  | 9,067,464 |  |  |  | 4,601,313 |  |  |  | 3,361,431 |  |  |  | — |  |  |  | 0 |  |  |  | 0 |  |  |  | 17,030,207 |
2020 |  |  | 11,925,318 |  |  |  | — |  |  |  | 0 |  |  |  | 1,937,431 |  |  |  | 0 |  |  |  | 0 |  |  |  | 13,862,749 |
Following is a reconciliation of the SCT total and the CAP for our former CEO, Mr. Lund, for each of the applicable years.
CEO: Victor Lund
Year |  | SCT Total ($) |  | Subtract Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT ($) |  | Add Change in Fair Value of Stock Awards ($) |  | CAP ($)
2022 |  | n/a |  | n/a |  | n/a |  | n/a
2021 |  | n/a |  | n/a |  | n/a |  | n/a
2020 |  | 1,064,957 |  | 0 |  | (1,465,627) |  | (400,670)
Following is a table that reflects the change in fair value of stock awards for Mr. Lund, our former CEO, for each of the applicable years.
CEO: Change in Fair Value of Stock Awards (V. Lund) |
Year |  | Year-End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Year-over- Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year ($) |  |  | Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year ($) |  |  | Adjustments for Stock Awards that Failed to Meet Performance Conditions ($) |  |  | Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value ($) |  |  | Total Change in Fair Value on Stock Awards Included in CAP (3) ($) |
2022 |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
2021 |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |  |  |  | n/a |
2020 |  |  | (54,827 | ) |  |  | 0 |  |  |  | (1,410,800 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | (1,465,627 | )
Non-PEO NEO Average Total Compensation Amount | $ 4,123,973 | $ 6,081,512 | $ 4,516,638
Non-PEO NEO Average Compensation Actually Paid Amount | $ 2,642,464 | 8,485,757 | 3,241,121
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] |
(2) | CAP for the other named executive officers was calculated in the same manner as described above for the CEO, except the amounts were averaged for each year. Following is a reconciliation of the average SCT total and the average CAP for the named executive officers, other than the CEO, for each of the applicable years. The non-CEO named executive officers included in the average for each year are as follows:
| a) | 2022: Claire Bramley, Hillary Ashton, Todd Cione, and Margaret Treese
| b) | 2021: Claire Bramley, Mark Culhane (former CFO), Hillary Ashton, Todd Cione, and Kathleen Cullen-Cote
| c) | 2020: Mark Culhane (former CFO), Dan Harrington (former CSO), Hillary Ashton, Kathleen Cullen-Cote, and Scott Brown (former CRO)
Other Named Executive Officers |
Year |  | SCT Total ($) |  |  | Subtract Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT ($) |  |  | Add Change in Fair Value of Stock Awards ($) |  |  | CAP ($) |
2022 |  |  | 4,123,973 |  |  |  | (3,165,159) |  |  |  | 1,683,650 |  |  |  | 2,642,464 |
2021 |  |  | 6,081,512 |  |  |  | (4,832,831) |  |  |  | 7,237,076 |  |  |  | 8,485,757 |
2020 |  |  | 4,516,638 |  |  |  | (3,463,175) |  |  |  | 2,187,658 |  |  |  | 3,241,121 |
Following is a table that reflects the average change in fair value of stock awards for the other named executive officers, for each of the applicable years.
Other Named Executive Officers: Average Change in Fair Value of Stock Awards |
Year |  | Year-End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Year-over- Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year ($) |  |  | Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year ($) |  |  | Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year ($) |  |  | Adjustments for Stock Awards that Failed to Meet Performance Conditions ($) |  |  | Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value ($) |  |  | Total Change in Fair Value on Stock Awards Included in CAP (3) ($) |
2022 |  |  | 2,240,060 |  |  |  | (495,560) |  |  |  | (60,850) |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 1,683,650 |
2021 |  |  | 4,649,235 |  |  |  | 1,307,346 |  |  |  | 1,235,320 |  |  |  | 1,188,741 |  |  |  | (1,143,566) |  |  |  | 0 |  |  |  | 7,237,076 |
2020 |  |  | 3,473,708 |  |  |  | (296,153) |  |  |  | (200,655) |  |  |  | 0 |  |  |  | (789,242) |  |  |  | 0 |  |  |  | 2,187,658 |
Compensation Actually Paid vs. Total Shareholder Return [Text Block] |
2. | CAP versus TSR
Compensation Actually Paid vs. Net Income [Text Block] |
3. | CAP versus Net Income
Compensation Actually Paid vs. Company Selected Measure [Text Block] |
4. | CAP versus Company-Selected Measure (CSM)
Total Shareholder Return Vs Peer Group [Text Block] |
1. | TSR: Teradata vs. Peer Group
Tabular List [Table Text Block] |
(7) | Following is a list of the most important financial measures used by Teradata to link CAP to performance for the most recently completed fiscal year:
| a) | Public Cloud ARR
| b) | Total ARR Growth
| c) | Non-GAAP Operating Margin
| d) | Free Cash Flow
Of the goals listed above, we consider Public Cloud ARR to be the most important financial performance measure (that is not otherwise required to be disclosed in the table) used to link CAP to company performance and therefore include it as the Company-Selected Measure in the table above. |  |
Total Shareholder Return Amount | $ 125.74 | 158.65 | 83.94
Peer Group Total Shareholder Return Amount | 134.82 | 172.92 | 142.21
Net Income (Loss) | $ 33,000,000 | $ 147,000,000 | $ 129,000,000
Company Selected Measure Amount | 357,000,000 | 202,000,000 | 106,000,000
PEO Name | Mr. McMillan |  |
Measure [Axis]: 1 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Public Cloud ARR |  |
Measure [Axis]: 2 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Total ARR Growth |  |
Measure [Axis]: 3 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Non-GAAP Operating Margin |  |
Measure [Axis]: 4 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Free Cash Flow |  |
Steve McMillan [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
PEO Total Compensation Amount | $ 15,035,353 | $ 11,570,638 | $ 14,329,531
PEO Actually Paid Compensation Amount | 10,958,172 | 19,339,239 | 15,652,678
Victor Lund [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
PEO Total Compensation Amount |  |  | 1,064,957
PEO Actually Paid Compensation Amount |  |  | (400,670)
PEO [Member] | Steve McMillan [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Year End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year | 9,256,525 | 9,067,464 | 11,925,318
Year over Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year | (152,281) | 4,601,313 |
Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year | (102,147) | 3,361,431 | 0
Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year |  |  | 1,937,431
Adjustments for Stock Awards that Failed to Meet Performance Conditions | 0 | 0 | 0
Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value | 0 | 0 | 0
PEO [Member] | Steve McMillan [Member] | Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (13,079,278) | (9,261,606) | (12,539,602)
PEO [Member] | Steve McMillan [Member] | Change in Fair Value of Stock Awards [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 9,002,097 | 17,030,207 | 13,862,749
PEO [Member] | Victor Lund [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Year End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year |  |  | (54,827)
Year over Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year |  |  | 0
Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year |  |  | (1,410,800)
Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year |  |  | 0
Adjustments for Stock Awards that Failed to Meet Performance Conditions |  |  | 0
Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value |  |  | 0
PEO [Member] | Victor Lund [Member] | Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  |  | 0
PEO [Member] | Victor Lund [Member] | Change in Fair Value of Stock Awards [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  |  | (1,465,627)
Non-PEO NEO [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Year End Fair Value of Stock Awards Granted in Covered Fiscal Year that Remained Unvested at the end of the Covered Fiscal Year | 2,240,060 | 4,649,235 | 3,473,708
Year over Year Increase or Decrease in Fair Value for Stock Awards Granted in Prior Years that Remained Unvested at the end of the Covered Fiscal Year | (495,560) | 1,307,346 | (296,153)
Increase or Decrease in Fair Value of Stock Awards Granted in Prior Years that Vested in Covered Fiscal Year | (60,850) | 1,235,320 | (200,655)
Fair Value of Stock Award Granted in Covered Fiscal Year that Vested in Covered Fiscal Year | 0 | 1,188,741 | 0
Adjustments for Stock Awards that Failed to Meet Performance Conditions | 0 | (1,143,566) | (789,242)
Value of Dividends or Other Earnings Paid on Stock Awards not Otherwise Reflected in Fair Value | 0 | 0 | 0
Non-PEO NEO [Member] | Grant Date Value of Stock Awards Granted Each Year as Disclosed in the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (3,165,159) | (4,832,831) | (3,463,175)
Non-PEO NEO [Member] | Change in Fair Value of Stock Awards [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ 1,683,650 | $ 7,237,076 | $ 2,187,658

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnVsPeerGroupTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tdc_AdjustmentsForStockAwardsThatFailedToMeetPerformanceConditions
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tdc_FairValueOfStockAwardGrantedInCoveredFiscalYearThatVestedInCoveredFiscalYear
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tdc_IncreaseOrDecreaseInFairValueOfStockAwardsGrantedInPriorYearsThatVestedInCoveredFiscalYear
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tdc_ValueOfDividendsOrOtherEarningsPaidOnStockAwardsNotOtherwiseReflectedInFairValue
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tdc_YearEndFairValueOfStockAwardsGrantedInCoveredFiscalYearThatRemainedUnvestedAtTheEndOfTheCoveredFiscalYear
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tdc_YearOverYearIncreaseOrDecreaseInFairValueForStockAwardsGrantedInPriorYearsThatRemainedUnvestedAtTheEndOfTheCoveredFiscalYear
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 65 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126732423&loc=SL123482106-238011 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 17: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669619-108580 Reference 25: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760 Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669625-108580 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 34: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=3
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=4
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=tdc_SteveMcmillanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=tdc_VictorLundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=tdc_GrantDateValueOfStockAwardsGrantedEachYearAsDisclosedInTheSctMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=tdc_ChangeInFairValueOfStockAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |