XML 47 R30.htm IDEA: XBRL DOCUMENT
v3.23.1

Stock Acquisition Rights, Stock Options and Warrants (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Summary of Restricted Stock and Restricted Stock Units Activity | A summary of non-vested restricted stock activity for the year ended March 31, 2023 is as follows:
| Restricted Stock |  | Weighted Average Grant Day Fair Value
Non-vested restricted stock outstanding at March 31, 2022 | 544,287 |  |  | $ | 47.39 |
Granted | 255,912 |  |  | 47.85 |
Vested | (214,029) |  |  | 46.22 |
Forfeited | (17,508) |  |  | 50.92 |
Non-vested restricted stock outstanding at March 31, 2023 | 568,662 |  |  | $ | 47.93 |
Schedule of Restricted Stock Activity | The following table reflects activity related to our restricted stock for the years ended March 31, 2023, 2022 and 2021:
| 2023 |  | 2022 |  | 2021
Weighted-average grant-date fair value per unit granted | $ | 47.85 |  |  | $ | 50.64 |  |  | $ | 46.07 |
Fair value of restricted stock units vested (in thousands) | $ | 12,245 |  |  | $ | 12,240 |  |  | $ | 8,165 |
Summary of Performance Stock Activity | A summary of the performance-based restricted stock unit activity for the year ended March 31, 2023 is as follows:
| Performance Stock |  | Weighted Average Grant Day Fair Value
Performance stock outstanding at March 31, 2022 | 75,049 |  |  | $ | 58.65 |
Granted | — |  |  | — |
Vested | — |  |  | — |
Forfeited/cancelled | — |  |  | — |
Performance stock outstanding at March 31, 2023 | 75,049 |  |  | $ | 58.65 |
Schedule of Performance Shares Activity | The following table reflects activity related to our performance-based restricted stock units for the years ended March 31, 2023, 2022 and 2021:
| 2023 |  | 2022 |  | 2021
Weighted-average grant-date fair value per unit granted | $ | — |  |  | $ | — |  |  | $ | 58.65 |
Fair value of Performance stock units vested (in thousands) | $ | — |  |  | $ | — |  |  | $ | 3,941 |
Schedule of Assumptions used to Calculate Fair Value of Performance-Based Restricted Units | The following assumptions were used to calculate the grant date fair value of performance-based restricted units with market price condition using the Monte Carlo simulation model:
|  | February 1, 2021
Risk-free interest rate |  | 0.29%
Dividend yield |  | —%
Volatility |  | 56.09%
Simulation term |  | 4 years
Forfeiture rate |  | —%
Summary of Stock Option Activity | A summary of Stock Option activity for the year ended March 31, 2023 is as follows:
| Options |  | Weighted Average Exercise Price |  | Weighted Average Contractual Term |  | Aggregate Intrinsic Value
Options outstanding at March 31, 2022 | 1,006,241 |  |  | $ | 32.98 |  |  |  |  |
Options granted | 476,208 |  |  | 49.39 |  |  |  |  |
Options exercised | (79,500) |  |  | 22.86 |  |  |  |  |
Options forfeited/expired | — |  |  | — |  |  |  |  |
Options outstanding at March 31, 2023 | 1,402,949 |  |  | $ | 39.12 |  |  | 6.17 |  | $ | 5,128,070 |
Exercisable at March 31, 2023 | 746,371 |  |  | $ | 29.25 |  |  | 3.66 |  | $ | 5,128,070 |
Total vested or expected to vest at March 31, 2023 | 1,400,235 |  |  | $ | 39.11 |  |  | 6.17 |  | $ | 5,128,070 |
Schedule of Additional Information Regarding Stock Options Outstanding | Additional information regarding stock options outstanding at March 31, 2023 is as follows:
Exercise Prices |  | Number Outstanding |  | Weighted Average Remaining Life in Years |  | Weighted Average Exercise Price |  | Options Exercisable |  | Weighted Average Exercise-Price of Shares Exercisable
$ | 20.00 |  |  | — |  | $ | 20.00 |  |  | 164,000 |  |  | 1.19 |  | $ | 20.00 |  |  | 164,000 |  |  | $ | 20.00 |
20.01 |  |  | — |  | 46.23 |  |  | 515,085 |  |  | 4.07 |  | 27.79 |  |  | 483,835 |  |  | 27.36 |
46.24 |  |  | — |  | 72.85 |  |  | 723,864 |  |  | 8.80 |  | 51.52 |  |  | 98,536 |  |  | 53.92 |
|  |  |  |  |  | 1,402,949 |  |  | 6.17 |  | $ | 39.12 |  |  | 746,371 |  |  | $ | 29.25 |
Schedule of Assumptions used to Calculate Fair Value of Options | The following assumptions were used to calculate the fair value of stock options:
| Year Ended |  | Year Ended |  | Year Ended
| March 31, 2023 |  | March 31, 2022 |  | March 31, 2021
Risk-free interest rate | 2.95% to 3.62% |  | 0.92% to 0.96% |  | 0.43% to 0.51%
Dividend yield | —% |  | —% |  | —%
Volatility | 50.80% to 51.60% |  | 53.18% to 53.45% |  | 53.41% to 52.43%
Expected term | 5.43 years |  | 5.92 and 6.02 years |  | 6.07 years
Forfeiture rate | —% to 3% |  | —% |  | —% to 2%
Weighted-average grant-date fair value per option granted | $ | 49.39 |  |  | $ | 58.56 |  |  | $ | 42.04 |
Summary of Performance Stock Options | A summary of the Performance-Based Stock Options for the year ended March 31, 2023 is as follows:
| Performance Options |  | Weighted Average Exercise Price
Performance Options outstanding at March 31, 2022 | 33,782 |  |  | $ | 46.85 |
Performance Options granted | — |  |  | — |
Performance Options exercised | — |  |  | — |
Performance Options forfeited/expired | — |  |  | — |
Performance Options outstanding at March 31, 2023 | 33,782 |  |  | $ | 46.85 |
Share Repurchase Activity | The following table presents the share repurchase activity for Fiscal 2023, Fiscal 2022 and Fiscal 2021 (in thousands, except per share data):
| For the years ended March 31,
| 2023 |  | 2022 |  | 2021
Number of shares repurchased and retired | 216 |  |  | 252 |  |  | — |
Average price paid per share* | $ | 47.05 |  |  | $ | 57.50 |  |  | $ | — |
Total cost to repurchase | $ | 8,223 |  |  | $ | 14,962 |  |  | $ | — |
* Average price paid per share includes costs associated with the repurchases.

X
- Definition Schedule of Share-based Payment Award, Performance-Based Resticted Units, Valuation Assumptions [Table Text Block] + References No definition available. + Details
Name: | atex_ScheduleOfShareBasedPaymentAwardPerformanceBasedRestictedUnitsValuationAssumptionsTableTextBlock
Namespace Prefix: | atex_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of accelerated share repurchase (ASR) programs. An ASR is a combination of transactions that permits an entity to purchase a targeted number of shares immediately with the final purchase price of those shares determined by an average market price over a fixed period of time. An accelerated share repurchase program is intended to combine the immediate share retirement benefits of a tender offer with the market impact and pricing benefits of a disciplined daily open market stock repurchase program. ASRs can be disclosed as part of stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
Name: | us-gaap_AcceleratedShareRepurchasesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding performance-based awards that are fully vested and expected to vest. Includes, but is not limited to, unvested awards for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceBasedUnitsVestedAndExpectedToVestTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationPerformanceSharesAwardOutstandingActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number and weighted-average grant date fair value for nonvested performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationPerformanceSharesAwardUnvestedActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration