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v3.22.1

Stock-Based Compensation (Tables) | 3 Months Ended
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Apr. 30, 2022
Stock-Based Compensation. |
Stock options outstanding, vested or expected to vest, and exercisable | Information about stock options outstanding, vested or expected to vest, and exercisable as of April 30, 2022 is as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | OPTIONS OUTSTANDING | ​ | OPTIONS EXERCISABLE
​ |  | ​ |  | WEIGHTED- |  | ​ | ​ |  | ​ |  | ​ | ​
​ | ​ | ​ | ​ | AVERAGE | ​ | WEIGHTED- | ​ | ​ | ​ | WEIGHTED-
​ | ​ | ​ | ​ | REMAINING | ​ | AVERAGE | ​ | ​ | ​ | AVERAGE
​ | ​ | NUMBER OF | ​ | CONTRACTUAL | ​ | EXERCISE | ​ | NUMBER OF | ​ | EXERCISE
RANGE OF EXERCISE PRICES | ​ | OPTIONS | ​ | LIFE (IN YEARS) | ​ | PRICE | ​ | OPTIONS | ​ | PRICE
$25.39 — $45.82 |  | 331,888 | ​ | 3.67 | ​ | $ | 35.06 | ​ | 330,448 | ​ | $ | 35.01
$50.00 — $50.00 |  | 1,000,000 | ​ | 5.01 | ​ | ​ | 50.00 | ​ | 1,000,000 | ​ | ​ | 50.00
$53.47 — $69.09 | ​ | 199,700 | ​ | 2.07 | ​ | ​ | 61.16 | ​ | 197,660 | ​ | ​ | 61.20
$75.43 — $75.43 |  | 1,000,000 | ​ | 1.17 | ​ | ​ | 75.43 | ​ | 1,000,000 | ​ | ​ | 75.43
$87.31 — $154.82 | ​ | 849,939 | ​ | 7.20 | ​ | ​ | 133.43 | ​ | 222,484 | ​ | ​ | 124.06
$156.40 — $380.53 | ​ | 302,230 | ​ | 8.18 | ​ | ​ | 287.75 | ​ | 36,495 | ​ | ​ | 264.61
$385.30 — $716.75 | ​ | 843,820 | ​ | 8.58 | ​ | ​ | 422.73 | ​ | 706,610 | ​ | ​ | 386.64
Total |  | 4,527,577 |  | ​ | ​ | $ | 156.01 |  | 3,493,697 | ​ | $ | 131.54
Vested or expected to vest |  | 4,275,803 |  | ​ | ​ | $ | 150.42 |  |  | ​ |  |

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- 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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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