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FINANCIAL STATEMENTS FOR GUARANTORS OF THE 4.500% SENIOR UNSECURED NOTES (Tables) | 9 Months Ended
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Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Condensed Consolidating Statement of Earnings and Comprehensive Earnings |
Condensed Consolidating Statement of Earnings and Comprehensive Earnings For the Three Months Ended December 31, 2017 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Revenues |  | $ | — |  |  | $ | 359,371 |  |  | $ | — |  |  | $ | 359,371 |
Cost of Goods Sold |  |  | — |  |  |  | 264,805 |  |  |  | — |  |  |  | 264,805 |
Gross Profit |  |  | — |  |  |  | 94,566 |  |  |  | — |  |  |  | 94,566 |
Equity in Earnings of Unconsolidated Joint Venture |  |  | 11,372 |  |  |  | 11,372 |  |  |  | (11,372 | ) |  |  | 11,372 |
Equity in Earnings of Subsidiaries |  |  | 138,597 |  |  |  | — |  |  |  | (138,597 | ) |  |  | — |
Corporate General and Administrative Expenses |  |  | (9,035 | ) |  |  | (848 | ) |  |  | — |  |  |  | (9,883 | )
Legal Settlement |  |  | (39,098 | ) |  |  | — |  |  |  | — |  |  |  | (39,098 | )
Other Non-Operating Income |  |  | 262 |  |  |  | 822 |  |  |  | — |  |  |  | 1,084 |
Interest Expense, net |  |  | (17,005 | ) |  |  | 10,352 |  |  |  | — |  |  |  | (6,653 | )
Earnings before Income Taxes |  |  | 85,093 |  |  |  | 116,264 |  |  |  | (149,969 | ) |  |  | 51,388 |
Income Tax Expense |  |  | 16,287 |  |  |  | 33,705 |  |  |  | — |  |  |  | 49,992 |
Net Earnings |  | $ | 101,380 |  |  | $ | 149,969 |  |  | $ | (149,969 | ) |  | $ | 101,380 |
Net Earnings |  | $ | 101,380 |  |  | $ | 149,969 |  |  | $ | (149,969 | ) |  | $ | 101,380 |
Net Actuarial Change in Benefit Plans, net of tax |  |  | 197 |  |  |  | 197 |  |  |  | (197 | ) |  |  | 197 |
Comprehensive Earnings |  | $ | 101,577 |  |  | $ | 150,166 |  |  | $ | (150,166 | ) |  | $ | 101,577 |
Condensed Consolidating Statement of Earnings and Comprehensive Earnings For the Three Months Ended December 31, 2016 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Revenues |  | $ | — |  |  | $ | 302,395 |  |  | $ | — |  |  | $ | 302,395 |
Cost of Goods Sold |  |  | — |  |  |  | 215,015 |  |  |  | — |  |  |  | 215,015 |
Gross Profit |  |  | — |  |  |  | 87,380 |  |  |  | — |  |  |  | 87,380 |
Equity in Earnings of Unconsolidated Joint Venture |  |  | 11,244 |  |  |  | 11,244 |  |  |  | (11,244 | ) |  |  | 11,244 |
Equity in Earnings of Subsidiaries |  |  | 60,294 |  |  |  | — |  |  |  | (60,294 | ) |  |  | — |
Corporate General and Administrative Expenses |  |  | (7,942 | ) |  |  | (1,224 | ) |  |  | — |  |  |  | (9,166 | )
Other Non-Operating Income (Loss) |  |  | (264 | ) |  |  | 693 |  |  |  | — |  |  |  | 429 |
Interest Expense, net |  |  | (14,413 | ) |  |  | 8,215 |  |  |  | — |  |  |  | (6,198 | )
Earnings before Income Taxes |  |  | 48,919 |  |  |  | 106,308 |  |  |  | (71,538 | ) |  |  | 83,689 |
Income Tax Expense |  |  | 7,468 |  |  |  | (34,770 | ) |  |  | — |  |  |  | (27,302 | )
Net Earnings |  | $ | 56,387 |  |  | $ | 71,538 |  |  | $ | (71,538 | ) |  |  | 56,387 |
Net Earnings |  | $ | 56,387 |  |  | $ | 71,538 |  |  | $ | (71,538 | ) |  |  | 56,387 |
Net Actuarial Change in Benefit Plans, net of tax |  |  | 312 |  |  |  | 312 |  |  |  | (312 | ) |  |  | 312 |
Comprehensive Earnings |  | $ | 56,699 |  |  | $ | 71,850 |  |  | $ | (71,850 | ) |  | $ | 56,699 |
Condensed Consolidating Statement of Earnings and Comprehensive Earnings For the Nine Months Ended December 31, 2017 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Revenues |  | $ | — |  |  | $ | 1,101,807 |  |  | $ | — |  |  | $ | 1,101,807 |
Cost of Goods Sold |  |  | — |  |  |  | 824,428 |  |  |  | — |  |  |  | 824,428 |
Gross Profit |  |  | — |  |  |  | 277,379 |  |  |  | — |  |  |  | 277,379 |
Equity in Earnings of Unconsolidated Joint Venture |  |  | 33,203 |  |  |  | 33,203 |  |  |  | (33,203 | ) |  |  | 33,203 |
Equity in Earnings of Subsidiaries |  |  | 261,389 |  |  |  | — |  |  |  | (261,389 | ) |  |  | — |
Corporate General and Administrative Expenses |  |  | (26,861 | ) |  |  | (2,522 | ) |  |  | — |  |  |  | (29,383 | )
Legal Settlement |  |  | (39,098 | ) |  |  | — |  |  |  | — |  |  |  | (39,098 | )
Other Non-Operating Income (Loss) |  |  | (84 | ) |  |  | 2,812 |  |  |  | — |  |  |  | 2,728 |
Interest Expense, net |  |  | (43,800 | ) |  |  | 22,208 |  |  |  | — |  |  |  | (21,592 | )
Earnings before Income Taxes |  |  | 184,749 |  |  |  | 333,080 |  |  |  | (294,592 | ) |  |  | 223,237 |
Income Tax Expense |  |  | 34,875 |  |  |  | (38,488 | ) |  |  | — |  |  |  | (3,613 | )
Net Earnings |  | $ | 219,624 |  |  | $ | 294,592 |  |  | $ | (294,592 | ) |  | $ | 219,624 |
Net Earnings |  | $ | 219,624 |  |  | $ | 294,592 |  |  | $ | (294,592 | ) |  | $ | 219,624 |
Net Actuarial Change in Benefit Plans, net of tax |  |  | 591 |  |  |  | 591 |  |  |  | (591 | ) |  |  | 591 |
Comprehensive Earnings |  | $ | 220,215 |  |  | $ | 295,183 |  |  | $ | (295,183 | ) |  | $ | 220,215 |
Condensed Consolidating Statement of Earnings and Comprehensive Earnings For the Nine Months Ended December 31, 2016 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
Revenues |  | $ | — |  |  | $ | 932,557 |  |  | $ | — |  |  | $ | 932,557 |
Cost of Goods Sold |  |  | — |  |  |  | 682,012 |  |  |  | — |  |  |  | 682,012 |
Gross Profit |  |  | — |  |  |  | 250,545 |  |  |  | — |  |  |  | 250,545 |
Equity in Earnings of Unconsolidated Joint Venture |  |  | 31,371 |  |  |  | 31,371 |  |  |  | (31,371 | ) |  |  | 31,371 |
Equity in Earnings of Subsidiaries |  |  | 171,466 |  |  |  | — |  |  |  | (171,466 | ) |  |  | — |
Corporate General and Administrative Expenses |  |  | (23,670 | ) |  |  | (4,161 | ) |  |  | — |  |  |  | (27,831 | )
Other Non-Operating Income (Loss) |  |  | (478 | ) |  |  | 2,486 |  |  |  | — |  |  |  | 2,008 |
Interest Expense, net |  |  | (36,778 | ) |  |  | 21,023 |  |  |  | — |  |  |  | (15,755 | )
Earnings before Income Taxes |  |  | 141,911 |  |  |  | 301,264 |  |  |  | (202,837 | ) |  |  | 240,338 |
Income Tax Expense |  |  | 20,057 |  |  |  | (98,427 | ) |  |  | — |  |  |  | (78,370 | )
Net Earnings |  | $ | 161,968 |  |  | $ | 202,837 |  |  | $ | (202,837 | ) |  |  | 161,968 |
Net Earnings |  | $ | 161,968 |  |  | $ | 202,837 |  |  | $ | (202,837 | ) |  |  | 161,968 |
Net Actuarial Change in Benefit Plans, net of tax |  |  | 936 |  |  |  | 936 |  |  |  | (936 | ) |  |  | 936 |
Comprehensive Earnings |  | $ | 162,904 |  |  | $ | 203,773 |  |  | $ | (203,773 | ) |  | $ | 162,904 |
Condensed Consolidating Balance Sheet |
Condensed Consolidating Balance Sheet At December 31, 2017 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Assets - |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents |  | $ | 18,078 |  |  | $ | 3,598 |  |  | $ | — |  |  | $ | 21,676 |
Accounts and Notes Receivable |  |  | 394 |  |  |  | 143,268 |  |  |  | — |  |  |  | 143,662 |
Inventories |  |  | — |  |  |  | 239,628 |  |  |  | — |  |  |  | 239,628 |
Prepaid and Other Current Assets |  |  | 15,208 |  |  |  | 5,170 |  |  |  | — |  |  |  | 20,378 |
Total Current Assets |  |  | 33,680 |  |  |  | 391,664 |  |  |  | — |  |  |  | 425,344 |
Property, Plant and Equipment - |  |  | 3,148 |  |  |  | 2,544,282 |  |  |  | — |  |  |  | 2,547,430 |
Less: Accumulated Depreciation |  |  | (1,029 | ) |  |  | (971,677 | ) |  |  | — |  |  |  | (972,706 | )
Property, Plant and Equipment, net |  |  | 2,119 |  |  |  | 1,572,605 |  |  |  | — |  |  |  | 1,574,724 |
Notes Receivable |  |  | — |  |  |  | 296 |  |  |  | — |  |  |  | 296 |
Investment in Joint Venture |  |  | 65 |  |  |  | 55,272 |  |  |  | — |  |  |  | 55,337 |
Investments in Subsidiaries and Receivables from Affiliates |  |  | 5,544,333 |  |  |  | 3,527,647 |  |  |  | (9,071,980 | ) |  |  | — |
Goodwill and Intangible Assets, net |  |  | — |  |  |  | 240,145 |  |  |  | — |  |  |  | 240,145 |
Other Assets |  |  | 5,482 |  |  |  | 6,715 |  |  |  | — |  |  |  | 12,197 |
|  | $ | 5,585,679 |  |  | $ | 5,794,344 |  |  | $ | (9,071,980 | ) |  | $ | 2,308,043 |
LIABILITIES AND STOCKHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Liabilities- |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Payable |  | $ | 5,813 |  |  | $ | 67,390 |  |  | $ | — |  |  | $ | 73,203 |
Accrued Liabilities |  |  | 62,485 |  |  |  | 38,947 |  |  |  | — |  |  |  | 101,432 |
Total Current Liabilities |  |  | 68,298 |  |  |  | 106,337 |  |  |  | — |  |  |  | 174,635 |
Long-term Debt |  |  | 565,755 |  |  |  | — |  |  |  | — |  |  |  | 565,755 |
Other Long-term Liabilities |  |  | 140 |  |  |  | 34,972 |  |  |  | — |  |  |  | 35,112 |
Payables to Affiliates |  |  | 3,527,647 |  |  |  | 2,948,767 |  |  |  | (6,476,414 | ) |  |  | — |
Deferred Income Taxes |  |  | 7,650 |  |  |  | 108,702 |  |  |  | — |  |  |  | 116,352 |
Total Liabilities |  |  | 4,169,490 |  |  |  | 3,198,778 |  |  |  | (6,476,414 | ) |  |  | 891,854 |
Total Stockholders’ Equity |  |  | 1,416,189 |  |  |  | 2,595,566 |  |  |  | (2,595,566 | ) |  |  | 1,416,189 |
|  | $ | 5,585,679 |  |  | $ | 5,794,344 |  |  | $ | (9,071,980 | ) |  | $ | 2,308,043 |
Condensed Consolidating Balance Sheet At March 31, 2017 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Assets - |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents |  | $ | 5,184 |  |  | $ | 1,377 |  |  | $ | — |  |  | $ | 6,561 |
Accounts and Notes Receivable |  |  | 422 |  |  |  | 135,891 |  |  |  | — |  |  |  | 136,313 |
Inventories |  |  | — |  |  |  | 252,846 |  |  |  | — |  |  |  | 252,846 |
Income Tax Receivable |  |  | 33,196 |  |  |  | — |  |  |  | (33,196 | ) |  |  | — |
Prepaid and Other Current Assets |  |  | 484 |  |  |  | 4,420 |  |  |  | — |  |  |  | 4,904 |
Total Current Assets |  |  | 39,286 |  |  |  | 394,534 |  |  |  | (33,196 | ) |  |  | 400,624 |
Property, Plant and Equipment - |  |  | 2,914 |  |  |  | 2,436,524 |  |  |  | — |  |  |  | 2,439,438 |
Less: Accumulated Depreciation |  |  | (937 | ) |  |  | (891,664 | ) |  |  | — |  |  |  | (892,601 | )
Property, Plant and Equipment, net |  |  | 1,977 |  |  |  | 1,544,860 |  |  |  | — |  |  |  | 1,546,837 |
Notes Receivable |  |  | — |  |  |  | 815 |  |  |  | — |  |  |  | 815 |
Investment in Joint Venture |  |  | 51 |  |  |  | 48,569 |  |  |  | — |  |  |  | 48,620 |
Investments in Subsidiaries and Receivables from Affiliates |  |  | 5,126,289 |  |  |  | 3,252,309 |  |  |  | (8,378,598 | ) |  |  | — |
Goodwill and Intangible Assets, net |  |  | — |  |  |  | 235,505 |  |  |  | — |  |  |  | 235,505 |
Other Assets |  |  | 5,687 |  |  |  | 9,036 |  |  |  | — |  |  |  | 14,723 |
|  | $ | 5,173,290 |  |  | $ | 5,485,628 |  |  | $ | (8,411,794 | ) |  | $ | 2,247,124 |
LIABILITIES AND STOCKHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Liabilities- |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Payable |  | $ | 6,687 |  |  | $ | 85,506 |  |  | $ | — |  |  | $ | 92,193 |
Accrued Liabilities |  |  | 21,043 |  |  |  | 34,336 |  |  |  | — |  |  |  | 55,379 |
Income Tax Payable |  |  | 733 |  |  |  | 33,196 |  |  |  | (33,196 | ) |  |  | 733 |
Current Portion of Long-term Debt |  |  | 81,214 |  |  |  | — |  |  |  | — |  |  |  | 81,214 |
Total Current Liabilities |  |  | 109,677 |  |  |  | 153,038 |  |  |  | (33,196 | ) |  |  | 229,519 |
Long-term Debt |  |  | 605,253 |  |  |  | — |  |  |  | — |  |  |  | 605,253 |
Other Long-term Liabilities |  |  | 189 |  |  |  | 42,689 |  |  |  | — |  |  |  | 42,878 |
Payables to Affiliates |  |  | 3,252,309 |  |  |  | 2,825,710 |  |  |  | (6,078,019 | ) |  |  | — |
Deferred Income Taxes |  |  | 2,412 |  |  |  | 163,612 |  |  |  | — |  |  |  | 166,024 |
Total Liabilities |  |  | 3,969,840 |  |  |  | 3,185,049 |  |  |  | (6,111,215 | ) |  |  | 1,043,674 |
Total Stockholders’ Equity |  |  | 1,203,450 |  |  |  | 2,300,579 |  |  |  | (2,300,579 | ) |  |  | 1,203,450 |
|  | $ | 5,173,290 |  |  | $ | 5,485,628 |  |  | $ | (8,411,794 | ) |  | $ | 2,247,124 |
Condensed Consolidating Statement of Cash Flows |
Condensed Consolidating Statement of Cash Flows Nine Months ended December 31, 2017 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Cash Provided by Operating Activities |  | $ | 981 |  |  | $ | 274,159 |  |  | $ | — |  |  | $ | 275,140 |
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment Additions |  |  | (142 | ) |  |  | (83,556 | ) |  |  | — |  |  |  | (83,698 | )
Acquisition Spending |  |  | — |  |  |  | (36,761 | ) |  |  | — |  |  |  | (36,761 | )
Net Cash Used in Investing Activities |  |  | (142 | ) |  |  | (120,317 | ) |  |  | — |  |  |  | (120,459 | )
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease in Credit Facility |  |  | (40,000 | ) |  |  | — |  |  |  | — |  |  |  | (40,000 | )
Repayment of Senior Notes |  |  | (81,214 | ) |  |  | — |  |  |  | — |  |  |  | (81,214 | )
Dividends Paid to Stockholders |  |  | (14,571 | ) |  |  | — |  |  |  | — |  |  |  | (14,571 | )
Purchase and Retirement of Common Stock |  |  | (24,903 | ) |  |  | — |  |  |  | — |  |  |  | (24,903 | )
Proceeds from Stock Option Exercises |  |  | 23,729 |  |  |  | — |  |  |  | — |  |  |  | 23,729 |
Shares Redeemed to Settle Employee Taxes on Stock Compensation |  |  | (2,607 | ) |  |  | — |  |  |  | — |  |  |  | (2,607 | )
Intra-entity Activity, net |  |  | 151,621 |  |  |  | (151,621 | ) |  |  | — |  |  |  | — |
Net Cash Provided by (Used in) Financing Activities |  |  | 12,055 |  |  |  | (151,621 | ) |  |  | — |  |  |  | (139,566 | )
NET INCREASE IN CASH AND CASH EQUIVALENTS |  |  | 12,894 |  |  |  | 2,221 |  |  |  | — |  |  |  | 15,115 |
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD |  |  | 5,184 |  |  |  | 1,377 |  |  |  | — |  |  |  | 6,561 |
CASH AND CASH EQUIVALENTS AT END OF PERIOD |  | $ | 18,078 |  |  | $ | 3,598 |  |  | $ | — |  |  | $ | 21,676 |
Condensed Consolidating Statement of Cash Flows Nine Months ended December 31, 2016 |  | Parent |  |  | Guarantor Subsidiaries |  |  | Eliminations |  |  | Consolidated |
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Cash Provided by (Used in) Operating Activities |  | $ | (53,877 | ) |  | $ | 342,745 |  |  | $ | — |  |  | $ | 288,868 |
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment Additions |  |  | (271 | ) |  |  | (33,772 | ) |  |  | — |  |  |  | (34,043 | )
Net Cash Used in Investing Activities |  |  | (271 | ) |  |  | (33,772 | ) |  |  | — |  |  |  | (34,043 | )
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease in Credit Facility |  |  | (382,000 | ) |  |  | — |  |  |  | — |  |  |  | (382,000 | )
Repayment of Senior Notes |  |  | (8,000 | ) |  |  | — |  |  |  | — |  |  |  | (8,000 | )
Issuance of Long-term Debt |  |  | 350,000 |  |  |  | — |  |  |  | — |  |  |  | 350,000 |
Payment of Debt Issuance Costs |  |  | (6,637 | ) |  |  | — |  |  |  | — |  |  |  | (6,637 | )
Dividends Paid to Stockholders |  |  | (14,500 | ) |  |  | — |  |  |  | — |  |  |  | (14,500 | )
Shares Redeemed to Settle Employee Taxes on Stock Compensation |  |  | (3,084 | ) |  |  | — |  |  |  | — |  |  |  | (3,084 | )
Purchase and Retirement of Common Stock |  |  | (60,013 | ) |  |  | — |  |  |  | — |  |  |  | (60,013 | )
Proceed from Stock Option Exercises |  |  | 20,137 |  |  |  | — |  |  |  | — |  |  |  | 20,137 |
Excess Tax Benefits from Share Based Payment Arrangements |  |  | 8,546 |  |  |  | — |  |  |  | — |  |  |  | 8,546 |
Intra-entity Activity, net |  |  | 308,984 |  |  |  | (308,984 | ) |  |  | — |  |  |  | — |
Net Cash Provided by (Used in) Financing Activities |  |  | 213,433 |  |  |  | (308,984 | ) |  |  | — |  |  |  | (95,551 | )
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS |  |  | 159,285 |  |  |  | (11 | ) |  |  | — |  |  |  | 159,274 |
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD |  |  | 3,507 |  |  |  | 1,884 |  |  |  | — |  |  |  | 5,391 |
CASH AND CASH EQUIVALENTS AT END OF PERIOD |  | $ | 162,792 |  |  | $ | 1,873 |  |  | $ | — |  |  | $ | 164,665 |

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