Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Mar. 31, 2017
Current Assets -
Cash and Cash Equivalents	$ 21,676	$ 6,561
Accounts and Notes Receivable	143,662	136,313
Inventories	239,628	252,846
Prepaid and Other Assets	20,378	4,904
Total Current Assets	425,344	400,624
Property, Plant and Equipment -	2,547,430	2,439,438
Less: Accumulated Depreciation	(972,706)	(892,601)
Property, Plant and Equipment, net	1,574,724	1,546,837
Notes Receivable	296	815
Investment in Joint Venture	55,337	48,620
Goodwill and Intangible Assets, net	240,145	235,505
Other Assets	12,197	14,723
Total Assets	2,308,043	2,247,124
Current Liabilities -
Accounts Payable	73,203	92,193
Accrued Liabilities	101,432	55,379
Income Tax Payable		733
Current Portion of Long-term Debt		81,214
Total Current Liabilities	174,635	229,519
Long-term Debt	565,755	605,253
Other Long-term Liabilities	35,112	42,878
Deferred Income Taxes	116,352	166,024
Total Liabilities	891,854	1,043,674
Stockholders’ Equity -
Preferred Stock, Par Value $0.01; Authorized 5,000,000 Shares; None Issued
Common Stock, Par Value $0.01; Authorized 100,000,000 Shares; Issued and Outstanding 48,664,650 and 48,453,268 Shares, respectively	487	485
Capital in Excess of Par Value	156,834	149,014
Accumulated Other Comprehensive Losses	(6,805)	(7,396)
Retained Earnings	1,265,673	1,061,347
Total Stockholders’ Equity	1,416,189	1,203,450
Liabilities and Stockholders' Equity, Total	$ 2,308,043	$ 2,247,124

The aggregate of amounts due from customers or clients, within one year of the balance sheet date (or one operating cycle, if longer), for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date within one year of the balance sheet, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively.

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Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).