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Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Thousands | 6 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net Cash Provided by (Used in) Operating Activities | $ 174,876 | $ 152,748
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Additions to Property, Plant, and Equipment | (93,444) | (44,851)
Proceeds from Sale of Property, Plant, and Equipment | 2,281 |
Acquisition Spending |  | (36,761)
Net Cash Used in Investing Activities | (91,163) | (81,612)
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Increase (Repayment) of Credit Facility | 10,000 | (30,000)
Dividends Paid to Stockholders | (9,582) | (9,709)
Purchase and Retirement of Common Stock | (122,404) | (24,903)
Proceeds from Stock Option Exercises | 1,992 | 20,426
Shares Redeemed to Settle Employee Taxes on Stock Compensation | (1,785) | (2,455)
Net Cash Used in Financing Activities | (121,779) | (46,641)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (38,066) | 24,495
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD | 48,068 | 6,561
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD | 10,002 | 31,056
Parent [Member] |  |
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net Cash Provided by (Used in) Operating Activities | (69,161) | 21,447
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Additions to Property, Plant, and Equipment | (1,133) |
Net Cash Used in Investing Activities | (1,133) |
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Increase (Repayment) of Credit Facility | 10,000 | (30,000)
Dividends Paid to Stockholders | (9,582) | (9,709)
Purchase and Retirement of Common Stock | (122,404) | (24,903)
Proceeds from Stock Option Exercises | 1,992 | 20,426
Shares Redeemed to Settle Employee Taxes on Stock Compensation | (1,785) | (2,455)
Intra-entity Activity, net | 155,120 | 49,072
Net Cash Used in Financing Activities | 33,341 | 2,431
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (36,953) | 23,878
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD | 44,537 | 5,184
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD | 7,584 | 29,062
Guarantor Subsidiaries [Member] |  |
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net Cash Provided by (Used in) Operating Activities | 244,037 | 131,301
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Additions to Property, Plant, and Equipment | (92,311) | (44,851)
Proceeds from Sale of Property, Plant, and Equipment | 2,281 |
Acquisition Spending |  | (36,761)
Net Cash Used in Investing Activities | (90,030) | (81,612)
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Intra-entity Activity, net | (155,120) | (49,072)
Net Cash Used in Financing Activities | (155,120) | (49,072)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (1,113) | 617
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD | 3,531 | 1,377
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD | $ 2,418 | $ 1,994

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 + Details
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