STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Sep. 30, 2023	Dec. 20, 2022	Sep. 30, 2022	Jun. 30, 2022
Share-based compensation
Common stock, shares authorized	200,000,000	200,000,000
Common stock, par or stated value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, par or stated value (in dollars per shares)	$ 1.00	$ 1.00
Acquisition of treasury stock	$ 60,502,000	$ 149,997,000	$ 58,621,000
Treasury stock, at cost (in shares)	89,700,000	87,400,000
Treasury stock, at cost	$ 2,318,371,000	$ 2,252,034,000
Dividends, common stock	$ 0
Total shares reserved for issuance since inception of the stock option and equity compensation plans (in shares)		42,400,000		46,400,000			37,900,000
Number of available shares (in shares)	4,000,000	4,500,000
Employee stock purchase plan
Share-based compensation
Total shares reserved for issuance since inception of the stock option and equity compensation plans (in shares)						1,400,000	400,000
Number of available shares (in shares)	1,000,000
Share-based compensation expense	$ 1,666,000	$ 2,051,000	$ 1,803,000
Stock Option and Equity Compensation Plans
Share-based compensation
Total shares reserved for issuance since inception of the stock option and equity compensation plans (in shares)	49,000,000	45,000,000		49,000,000		45,000,000	39,500,000
Shares which remained available for future grants (in shares)	6,800,000
Stock Option and Equity Compensation Plans | Employee stock purchase plan
Share-based compensation
Shares which remained available for future grants (in shares)	900,000
2005 Plan
Share-based compensation
Duration of stock options granted		5 years
Share-based compensation expense		$ 5,400,000
Common Stock Repurchase Program
Share-based compensation
Stock repurchase program, authorized amount	$ 1,100,000,000				$ 100,000,000
Acquisition of treasury stock (in shares)	2,100,000	6,100,000	1,300,000
Acquisition of treasury stock	$ 60,500,000	$ 150,000,000	$ 58,600,000
Treasury stock, at cost (in shares)	37,700,000
Treasury stock, at cost	$ 942,700,000
Stock repurchase program, remaining amount	$ 157,300,000