STOCKHOLDERS' EQUITY - Narrative (Details)			1 Months Ended			3 Months Ended		12 Months Ended
	Jan. 01, 2025 shares	May 20, 2021	Mar. 31, 2025 USD ($) shares	Mar. 31, 2024 shares	May 31, 2021 USD ($) shares	Mar. 31, 2025 USD ($) purchase_period $ / shares shares	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($) shares	Oct. 31, 2024 USD ($)	Jan. 01, 2024 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options issued (in shares)			3,002,508			3,002,508		3,152,158
Shares granted (in shares)						0		0
Total unrecognized stock-based compensation expense (less than) | $			$ 0			$ 0
Accrued salary, payroll tax, and employee benefit liabilities | $			35,147,000			35,147,000		$ 25,210,000
Stock-based compensation expense | $						$ 48,279,000	$ 40,132,000
Share repurchase program, authorized amount | $									$ 300,000,000
Stock repurchased and retired during period (in shares)						1,450,591
Shares acquired, average cost per share (in dollars per share) | $ / shares						$ 68.96
Stock repurchased and retired during period, value | $						$ 100,000,000.0
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized stock-based compensation expense | $			4,100,000			$ 4,100,000
Total unrecognized compensation cost, weighted-average period						3 months 18 days
Offering period (in months)						12 months
Number of purchase periods | purchase_period						2
Duration of purchase periods (in months)					6 months	6 months
Percentage of eligible compensation					15.00%
Maximum amount each participant can contribute to a defined contribution plan per calendar year | $					$ 25,000
Maximum number of shares each participant can purchase during purchase period (in shares)					2,500
Purchase price, threshold, percentage of fair market value					85.00%
Accrued salary, payroll tax, and employee benefit liabilities | $			12,200,000			$ 12,200,000		$ 5,400,000
Stock-based compensation expense | $						2,800,000	$ 2,400,000
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized stock-based compensation expense | $			$ 538,500,000			$ 538,500,000
Total unrecognized compensation cost, weighted-average period						2 years 10 months 24 days
Shares granted (in shares)						2,648,939
Restricted Stock Units | IPO
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs vesting period (in years)						4 years
Performance Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs vesting period (in years)			3 years	3 years
Total unrecognized stock-based compensation expense | $			$ 8,100,000			$ 8,100,000
Total unrecognized compensation cost, weighted-average period						1 year 3 months 18 days
Shares granted (in shares)			93,438	46,986		93,438
Award payout range, percentage						1
Performance Shares | Revenue Performance Goals
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted (in shares)						70,078		35,239
Percentage of awards						75.00%		75.00%
Performance Shares | Revenue Performance Goals | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award payout range, percentage						0		0
Performance Shares | Revenue Performance Goals | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award payout range, percentage						2		2
Performance Shares | Non-GAAP Operating Margin Performance
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted (in shares)						23,360		11,747
Percentage of awards						25.00%		25.00%
Performance Shares | Non-GAAP Operating Margin Performance | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award payout range, percentage						0		0
Performance Shares | Non-GAAP Operating Margin Performance | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award payout range, percentage						1.50		1.50
Performance Shares | Final Vesting, After February 20, 2026
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs vesting period (in years)						2 years
Performance Shares | Final Vesting, After February 20, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs vesting period (in years)								2 years
Performance Shares | On Or After February 20, 2026
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award payout range, percentage						0.33
Performance Shares | On Or After February 20, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award payout range, percentage								0.33
Common Stock | Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares outstanding as a percent					1.00%
Maximum number of additional shares of common stock that may be issued (in shares)					3,900,000
Maximum amount common stock that may be issued (in shares)								6,780,128		1,498,531
Period of common stock reserved for issuance (in years)					10 years
2021 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options issued (in shares)			0			0
2021 Equity Incentive Plan | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for issuance (in shares)			39,766,423			39,766,423		51,863,260
Shares outstanding as a percent		5.00%
Maximum number of additional shares of common stock that may be issued (in shares)	7,492,656
Maximum amount common stock that may be issued (in shares)			59,355,916			59,355,916