STOCK PLANS - Narrative (Details)							12 Months Ended				23 Months Ended
	Sep. 14, 2023 shares	Aug. 24, 2022 shares	Sep. 10, 2020 shares	Nov. 08, 2018 shares	Mar. 01, 2012 USD ($) shares	Sep. 07, 2011 shares	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023	Mar. 31, 2022	Sep. 09, 2020	Aug. 23, 2022
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award performance measurement period							3 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost | $							$ 131,300,000
Unrecognized cost, period for recognition, years							1 year 3 months 18 days
Employee stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased by employees (in shares)							564,927
Shares issued under ESPP plan, weighted average purchase price per share (in dollars per share) | $ / shares							$ 24.24
Shares available for future issuance under the ESPP (in shares)							2,207,688
Maximum | Incentive options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options granted, years							5 years
2011 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares available (in shares)		2,000,000		3,000,000		2,500,000
Maximum payroll deductions for purchase of shares by participants					20.00%
Maximum number of shares available for purchased by participants (in shares)					2,000
Cap on fair value of shares available for purchase by participants | $					$ 25,000
Percentage of common stock price for employees					85.00%
2011 Employee Stock Purchase Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cap on fair value of shares available for purchase by participants | $					$ 50,000
2019 Amended, Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares available (in shares)	5,900,000	7,000,000	4,700,000
Minimum vesting requirement			1 year
Common stock, equity awards reserved for issuance (in shares)	8,263,547
Shares issued in period (in shares)	5,900,000
Shares available for grant (in shares)	2,363,547						8,387,662
Reduction for each share of common stock pursuant to option	1
Reduction for each share of common stock pursuant to other than option	2.67	2.34								2.76	2.32
2019 Amended, Equity Incentive Plan | Appreciation Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Addition in reserve equity	1
Percentage of fair market value of common stock	100.00%
2019 Amended, Equity Incentive Plan | Full Value Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Addition in reserve equity	2.67
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting requirement							4 years
Shares available for grant (in shares)							5,920,671
Percentage of incentive stock option granted							110.00%
2019 Equity Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options granted, years							7 years
2019 Equity Incentive Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value of common stock							100.00%
Percentage of voting stock							10.00%
2007 Equity Incentive Plan | Independent Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annualized forfeiture rate for awards granted							0.00%	0.00%	0.00%
2007 Equity Incentive Plan | Senior Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annualized forfeiture rate for awards granted							2.00%	2.00%	2.00%
2007 Equity Incentive Plan | Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annualized forfeiture rate for awards granted							5.00%	5.00%	5.00%