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STOCK-BASED COMPENSATION - Performance-based Restricted Stock Units, Narrative (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Mar. 31, 2022 | Mar. 31, 2021
Share-based compensation |  |  |
Award vesting rights percentage | 50.00% |  |
Vesting period | 1 year |  |
Acuity Data |  |  |
Share-based compensation |  |  |
Non-cash stock-based compensation expense | $ 4.8 |  |
Business combination, contingent consideration, liability, expected costs | 1.7 |  |
Acuity Data | Accrued Liabilities |  |  |
Share-based compensation |  |  |
Business combination, contingent consideration, liability | $ 1.4 |  |
Restricted stock units | Operating Metrics Performance Plan |  |  |
Share-based compensation |  |  |
Award vesting rights percentage | 50.00% |  |
Vesting period | 1 year |  |
Forfeited in period (in shares) | 58,312 |  |
Outstanding at the end of the period (in shares) | 174,930 |  |
Restricted stock units | Operating Metrics Performance Plan Units That Will Vest Immediately |  |  |
Share-based compensation |  |  |
Award vesting rights percentage | 50.00% |  |
Restricted stock units | Performance stock |  |  |
Share-based compensation |  |  |
Granted (in shares) | 406,501 |  | 59,634
Forfeited in period (in shares) | 146,709 |  |
Outstanding at the end of the period (in shares) | 709,589 | 584,468 |
Vesting in period (in shares) | 134,671 |  |
The total fair value of performance-based restricted stock units | $ 3.0 |  |
Restricted stock units | ATS Performance Plan Vesting Total Shareholder Return |  |  |
Share-based compensation |  |  |
Granted (in shares) |  | 36,425 |
Restricted stock units | ATS Performance Plan Vesting Total Shareholder Return | Minimum |  |  |
Share-based compensation |  |  |
Award vesting rights percentage |  | 0.00% |
Restricted stock units | ATS Performance Plan Vesting Total Shareholder Return | Maximum |  |  |
Share-based compensation |  |  |
Award vesting rights percentage |  | 100.00% |
Restricted stock units | Performance Shares Vesting Total Shareholder Return |  |  |
Share-based compensation |  |  |
Granted (in shares) |  | 49,977 |
Restricted stock units | Performance Shares Vesting Total Shareholder Return | Minimum |  |  |
Share-based compensation |  |  |
Award vesting rights percentage |  | 0.00% | 0.00%
Restricted stock units | Performance Shares Vesting Total Shareholder Return | Maximum |  |  |
Share-based compensation |  |  |
Award vesting rights percentage |  | 200.00% | 200.00%
Restricted stock units | 2021 Performance Shares That Will Vest Immediately |  |  |
Share-based compensation |  |  |
Hurdle achievement, percentage | 50.00% |  |
Forfeited in period (in shares) | 71,666 |  |
Outstanding at the end of the period (in shares) | 208,746 |  |

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