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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of non-vested options outstanding.

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Purchase price of common stock expressed as a percentage of its fair value.

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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended			30 Months Ended
	May 31, 2019 purchase_period shares	Jan. 31, 2023 USD ($) shares	Jan. 31, 2023 USD ($) tranche installment day change_in_contribution $ / shares shares	Jan. 31, 2022 USD ($) $ / shares shares	Jan. 31, 2021 USD ($) $ / shares	Dec. 12, 2024 USD ($)	May 31, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options unvested (in shares) \| shares		307,991	307,991
Options, aggregate intrinsic value		$ 247,200	$ 247,200	$ 480,500	$ 711,400
Options exercisable, weighted average contractual term			4 years 9 months 18 days	5 years 8 months 12 days	6 years 4 months 24 days
Weighted average grant date fair value (in dollars per share) \| $ / shares			$ 116.26	$ 180.08	$ 66.31
Options exercised, intrinsic value			$ 166,800	$ 570,900	$ 847,500
Options outstanding, intrinsic value		279,400	$ 279,400	$ 678,000	$ 1,400,000
Options outstanding, weighted average remaining contractual term			5 years	6 years 1 month 6 days	7 years
Total unrecognized stock-based compensation expense, unvested options		2,500	$ 2,500
Common stock shares issued, early exercised stock options \| shares			0	0
Number of shares of common stock related to early exercised stock options subject to repurchase (in shares) \| shares				197,994
Stock based compensation				$ 2,200
Threshold consecutive trading days \| day			45
ESPP employee payroll contributions		$ 168,767	$ 168,767	$ 104,563
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected amortization period, weighted average vesting period			1 year 7 months 6 days
Number of shares of common stock related to early exercised stock options subject to repurchase (in shares) \| shares		0	0
Stock options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			0.60%	0.20%
Expected stock price volatility			36.10%	35.80%
Stock options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			1.00%	0.40%
Expected stock price volatility			37.10%	37.30%
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vesting schedules \| tranche			4
RSUs \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of quarterly installments \| installment			12
Vesting percentage		25.00%	10.00%
RSUs \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of quarterly installments \| installment			16
Vesting percentage			15.00%
RSUs \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of quarterly installments \| installment			8
Vesting percentage			25.00%
RSUs \| Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			50.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected amortization period, weighted average vesting period			2 years 9 months 18 days
Unrecognized stock based compensation expense, unvested RSUs		$ 1,300,000	$ 1,300,000
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected amortization period, weighted average vesting period			1 year 2 months 12 days
Unrecognized stock based compensation expense, unvested RSUs		60,800	$ 60,800
Special Performance-based Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected amortization period, weighted average vesting period			2 years 1 month 6 days
Number of quarterly installments \| installment			4
Unrecognized stock based compensation expense, unvested RSUs		66,200	$ 66,200
Historical volatility rate, weight			50.00%
Historical volatility rate, weight			50.00%
Special Performance-based Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			0.85%
Expected stock price volatility			54.89%
Look back period			2 years 2 months 15 days
Special Performance-based Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			1.51%
Expected stock price volatility			55.36%
Look back period			2 years 6 months 29 days
Special Performance-based Stock Units \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			50.00%
Special Performance-based Stock Units \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			12.50%
Special Performance-based Stock Units \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			12.50%
Special Performance-based Stock Units \| Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			12.50%
Special Performance-based Stock Units \| Tranche Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			12.50%
Special Performance-based Stock Units \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares			655,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold percentage, outstanding shares	1.00%
Look back period	2 years
Maximum number of additional shares of common stock that may be issued (in shares) \| shares							5,000,000
ESPP, consecutive offering period	24 months
ESPP, number of purchase periods \| purchase_period	4
ESPP, purchase period duration	6 months
ESPP, percentage of eligible compensation	15.00%
Maximum number of shares purchasable (in shares) \| shares	2,500
Purchase price of common stock, percentage	85.00%
Number of increases in contribution \| change_in_contribution			1
ESPP employee payroll contributions		$ 17,500	$ 17,500	$ 14,800
Employee Stock Purchase Plan \| Rollover Feature \| Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, incremental cost						$ 58,600
Employee Stock Purchase Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			0.10%	0.00%	0.10%
Expected stock price volatility			39.60%	33.00%	30.10%
Employee Stock Purchase Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			4.70%	1.90%	2.00%
Expected stock price volatility			67.40%	55.90%	54.30%
Class A common stock \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares) \| shares	3,500,000
ESPP, purchase period duration	6 months
Equity Incentive Plan 2019 \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares) \| shares	8,750,000
Threshold percentage, outstanding shares	2.00%