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STOCKHOLDERS' EQUITY (Details) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 USD ($) class_of_stock vote shares | Jun. 30, 2023 USD ($) shares | Mar. 31, 2024 shares | Mar. 31, 2023 shares | Apr. 30, 2022 USD ($)
Class of Stock [Line Items] |  |  |  |  |
Number of classes of common stock | class_of_stock | 2 |  |  |  |
Conversion ratio of common stock | 1 |  |  |  |
Dividends outstanding | $ | $ 15,840,000 | $ 14,673,000 |  |  |
Authorized amount to be repurchased | $ |  |  |  |  | $ 500,000,000
Stock repurchase program, remaining authorized repurchase amount | $ | $ 457,700,000 |  |  |  |
Class A Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock voting rights, number of votes | vote | 1 |  |  |  |
Shares issued of common stock (in shares) | 53,053,499 |  | 52,348,511 |  |
Number of common shares outstanding (in shares) | 53,053,499 |  | 52,348,511 |  |
Class A Common Stock | Common stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares issued to non-employee directors (in shares) | 5,248 |  |  |  |
Conversion of Class B to Class A shares (in shares) | 608,084 | 651,068 |  |  |
Number of common shares outstanding (in shares) | 53,053,499 | 51,296,601 | 52,348,511 | 50,638,924 |
Class B Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock voting rights, number of votes | vote | 10 |  |  |  |
Shares issued of common stock (in shares) | 16,456,793 |  | 16,746,676 |  |
Number of common shares outstanding (in shares) | 16,456,793 |  | 16,746,676 |  |
Outstanding common stock repurchased and retired (in shares) | 672,581,000 | 507,511,000 |  |  |
Shares repurchased and retired, value | $ | $ 100,993,000 | $ 69,766,000 |  |  |
Class B Common Stock | Common stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Number of common shares outstanding (in shares) | 16,456,793 | 18,035,565 | 16,746,676 | 18,048,345 |
Investor | Class A Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares issued of common stock (in shares) | 52,983,316,000 | 51,231,666,000 |  |  |
HL Holders | Class B Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Number of common shares outstanding (in shares) | 16,456,793,000 | 18,035,565,000 |  |  |
Director | Class A Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares issued to non-employee directors (in shares) | 5,248 | 6,609 |  |  |
Shares issued of common stock (in shares) | 70,183,000 | 64,935,000 |  |  |

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