| Income Statement (Quarterly) | 2025-06-30 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 
|---|---|---|---|---|
| Revenue | 899,900,000 | 953,300,000 | 960,800,000 | 990,971,629 | 
| Cost of Revenue | 563,000,000 | 590,900,000 | 587,900,000 | 594,443,109 | 
| Gross Profit | 336,900,000 | 362,400,000 | 372,900,000 | 396,528,520 | 
| Operating Expenses | ||||
| R&D Expenses | 0 | 0 | 0 | 0 | 
| SG&A Expenses | 156,100,000 | 144,700,000 | 149,900,000 | 149,659,794 | 
| Operating Expenses | 198,300,000 | 156,300,000 | 220,600,000 | 161,500,000 | 
| Operating Income | 138,600,000 | 206,100,000 | 152,300,000 | 235,400,000 | 
| Interest Expense | 37,800,000 | 0 | 1,900,000 | 1,700,000 | 
| Income Before Tax | 89,700,000 | 202,300,000 | 150,400,000 | 233,681,081 | 
| Income Tax Expense | 27,100,000 | 60,600,000 | 67,000,000 | 78,600,000 | 
| Net Income | 62,600,000 | 141,700,000 | 83,400,000 | 155,300,000 | 
| Per Share | ||||
| EPS | 0.15 | 0.33 | 0.19 | 0.36 | 
| EPS Diluted | 0.00 | 0.00 | 0.00 | 0.00 | 
| Income Statement (Annual) | 2025-03-31 | 2024-03-31 | 2023-03-31 | 2022-03-31 | 2021-03-31 | 
|---|---|---|---|---|---|
| Revenue | 3,877,500,000 | 3,936,300,000 | 3,777,100,000 | 3,614,700,000 | 2,908,700,000 | 
| Cost of Revenue | 2,372,500,000 | 2,347,900,000 | 2,465,100,000 | 2,301,200,000 | 1,857,000,000 | 
| Gross Profit | 1,505,000,000 | 1,588,400,000 | 1,312,000,000 | 1,313,500,000 | 1,051,700,000 | 
| Operating Expenses | |||||
| R&D Expenses | 0 | 0 | 0 | 0 | 0 | 
| SG&A Expenses | 596,200,000 | 602,200,000 | 494,000,000 | 461,200,000 | 0 | 
| Operating Expenses | 849,100,000 | 818,300,000 | 533,600,000 | 499,200,000 | 423,900,000 | 
| Operating Income | 655,900,000 | 767,400,000 | 741,400,000 | 682,600,000 | 472,800,000 | 
| Interest Expense | 41,000,000 | 36,400,000 | 37,000,000 | 40,300,000 | 48,500,000 | 
| Income Before Tax | 645,400,000 | 754,800,000 | 723,500,000 | 643,100,000 | 412,000,000 | 
| Income Tax Expense | 221,400,000 | 244,600,000 | 211,500,000 | 184,000,000 | 149,200,000 | 
| Net Income | 424,000,000 | 510,200,000 | 512,000,000 | 459,100,000 | 262,800,000 | 
| Per Share | |||||
| EPS | 0.98 | 1.16 | 1.15 | 1.03 | 0.59 | 
| EPS Diluted | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Balance Sheet (Quarterly) | 2025-03-31 | 2024-03-31 | 2023-03-31 | 2022-03-31 | 
|---|---|---|---|---|
| Assets | ||||
| Cash and Cash Equivalents | 562,700,000 | 365,000,000 | 113,000,000 | 125,000,000 | 
| Short Term Investments | 0 | 0 | 140,900,000 | 119,700,000 | 
| Net Receivables | 328,900,000 | 312,700,000 | 361,600,000 | 406,300,000 | 
| Inventory | 347,100,000 | 337,800,000 | 344,200,000 | 279,700,000 | 
| Total Current Assets | 1,701,800,000 | 1,428,400,000 | 1,075,100,000 | 1,124,000,000 | 
| Property Plant Equipment | 2,239,400,000 | 2,098,700,000 | 1,901,000,000 | 1,517,100,000 | 
| Goodwill and Intangibles | 339,300,000 | 341,800,000 | 350,100,000 | 362,300,000 | 
| Total Assets | 5,229,900,000 | 4,912,600,000 | 4,479,100,000 | 4,243,200,000 | 
| Liabilities | ||||
| Account Payables | 232,500,000 | 252,000,000 | 198,200,000 | 273,600,000 | 
| Short Term Debt | 31,000,000 | 26,500,000 | 18,900,000 | 13,600,000 | 
| Total Current Liabilities | 810,200,000 | 797,700,000 | 697,300,000 | 769,900,000 | 
| Long Term Debt | 1,174,000,000 | 1,174,500,000 | 1,121,500,000 | 941,900,000 | 
| Total Liabilities | 3,068,400,000 | 3,053,700,000 | 2,867,700,000 | 2,910,300,000 | 
| Shareholders Equity | ||||
| Retained Earnings | 1,725,700,000 | 1,446,000,000 | 1,196,800,000 | 892,400,000 | 
| Total Shareholders Equity | 2,161,500,000 | 1,858,900,000 | 1,611,400,000 | 1,332,900,000 | 
| Balance Sheet (Annual) | 2025-03-31 | 2024-03-31 | 2023-03-31 | 2022-03-31 | 2021-03-31 | 
|---|---|---|---|---|---|
| Assets | |||||
| Cash and Cash Equivalents | 562,700,000 | 365,000,000 | 113,000,000 | 125,000,000 | 208,500,000 | 
| Short Term Investments | 0 | 0 | 140,900,000 | 119,700,000 | 0 | 
| Net Receivables | 328,900,000 | 312,700,000 | 361,600,000 | 406,300,000 | 339,800,000 | 
| Inventory | 347,100,000 | 337,800,000 | 344,200,000 | 279,700,000 | 218,300,000 | 
| Total Current Assets | 1,701,800,000 | 1,428,400,000 | 1,075,100,000 | 1,124,000,000 | 943,600,000 | 
| Property Plant Equipment | 2,239,400,000 | 2,098,700,000 | 1,901,000,000 | 1,517,100,000 | 1,421,400,000 | 
| Goodwill and Intangibles | 339,300,000 | 341,800,000 | 350,100,000 | 362,300,000 | 383,200,000 | 
| Total Assets | 5,229,900,000 | 4,912,600,000 | 4,479,100,000 | 4,243,200,000 | 4,089,000,000 | 
| Liabilities | |||||
| Account Payables | 232,500,000 | 252,000,000 | 198,200,000 | 273,600,000 | 174,000,000 | 
| Short Term Debt | 31,000,000 | 26,500,000 | 18,900,000 | 13,600,000 | 8,800,000 | 
| Total Current Liabilities | 810,200,000 | 797,700,000 | 697,300,000 | 769,900,000 | 901,100,000 | 
| Long Term Debt | 1,174,000,000 | 1,174,500,000 | 1,121,500,000 | 941,900,000 | 858,600,000 | 
| Total Liabilities | 3,068,400,000 | 3,053,700,000 | 2,867,700,000 | 2,910,300,000 | 3,028,200,000 | 
| Shareholders Equity | |||||
| Retained Earnings | 1,725,700,000 | 1,446,000,000 | 1,196,800,000 | 892,400,000 | 611,400,000 | 
| Total Shareholders Equity | 2,161,500,000 | 1,858,900,000 | 1,611,400,000 | 1,332,900,000 | 1,060,800,000 | 
| Cash Flow Statement (Quarterly) | 2025-03-31 | 2024-03-31 | 2023-03-31 | 2022-03-31 | 
|---|---|---|---|---|
| Operating Activities | ||||
| Net Income | 424,000,000 | 510,200,000 | 512,000,000 | 459,100,000 | 
| Depreciation & Amortization | 216,200,000 | 185,000,000 | 172,600,000 | 161,800,000 | 
| Stock Based Compensation | 23,000,000 | 28,200,000 | 15,700,000 | 9,000,000 | 
| Change in Working Capital | -37,900,000 | 43,900,000 | -103,400,000 | 26,100,000 | 
| Operating Cash Flow | 802,800,000 | 914,200,000 | 607,600,000 | 757,200,000 | 
| Investing Activities | ||||
| Capital Expenditure | -422,200,000 | -449,300,000 | -599,800,000 | -259,700,000 | 
| Investments | -422,200,000 | -449,300,000 | -599,800,000 | -259,700,000 | 
| Investing Cash Flow | -446,700,000 | -470,500,000 | -660,100,000 | -348,200,000 | 
| Financing Activities | ||||
| Debt Repayment | -8,700,000 | 67,000,000 | -188,500,000 | -351,000,000 | 
| Common Stock Issued/Repurchased | -149,900,000 | -271,000,000 | -84,299,757 | -2,500,000 | 
| Dividends Paid | 0 | 0 | -129,758,052 | -484,000,000 | 
| Financing Cash Flow | -165,900,000 | -210,100,000 | -25,400,000 | -449,600,000 | 
| Summary | ||||
| Free Cash Flow | 380,600,000 | 464,900,000 | 7,800,000 | 497,500,000 | 
| Net Change in Cash | 189,800,000 | 230,200,000 | -86,300,000 | -46,500,000 | 
| Cash Flow Statement (Annual) | 2025-03-31 | 2024-03-31 | 2023-03-31 | 2022-03-31 | 2021-03-31 | 
|---|---|---|---|---|---|
| Operating Activities | |||||
| Net Income | 424,000,000 | 510,200,000 | 512,000,000 | 459,100,000 | 262,800,000 | 
| Depreciation & Amortization | 216,200,000 | 185,000,000 | 172,600,000 | 161,800,000 | 135,000,000 | 
| Stock Based Compensation | 23,000,000 | 28,200,000 | 15,700,000 | 9,000,000 | 18,000,000 | 
| Change in Working Capital | -37,900,000 | 43,900,000 | -103,400,000 | 26,100,000 | 200,900,000 | 
| Operating Cash Flow | 802,800,000 | 914,200,000 | 607,600,000 | 757,200,000 | 786,900,000 | 
| Investing Activities | |||||
| Capital Expenditure | -422,200,000 | -449,300,000 | -599,800,000 | -259,700,000 | -120,200,000 | 
| Investments | -422,200,000 | -449,300,000 | -599,800,000 | -259,700,000 | -110,700,000 | 
| Investing Cash Flow | -446,700,000 | -470,500,000 | -660,100,000 | -348,200,000 | -120,400,000 | 
| Financing Activities | |||||
| Debt Repayment | -8,700,000 | 67,000,000 | -188,500,000 | -351,000,000 | -530,800,000 | 
| Common Stock Issued/Repurchased | -149,900,000 | -271,000,000 | -84,299,757 | -2,500,000 | 100,000 | 
| Dividends Paid | 0 | 0 | -129,758,052 | -484,000,000 | 0 | 
| Financing Cash Flow | -165,900,000 | -210,100,000 | -25,400,000 | -449,600,000 | -540,200,000 | 
| Summary | |||||
| Free Cash Flow | 380,600,000 | 464,900,000 | 7,800,000 | 497,500,000 | 666,700,000 | 
| Net Change in Cash | 189,800,000 | 230,200,000 | -86,300,000 | -46,500,000 | 132,600,000 |