Basis of Presentation and Significant Accounting Policies (Policies)	6 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Because of the seasonal nature of the Company’s business, the results of operations for any fiscal quarter will not necessarily be indicative of results to be expected for other quarters or a full fiscal year. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair statement of financial position, results of operation and cash flows at the dates and for the periods presented have been included. The unaudited information included in this Form 10-Q should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2016.
Taxes Collected from Customers	Taxes Collected from Customers Certain subsidiaries are subject to value added taxes on local sales.
Other Deferred Charges	Other Deferred Charges Other deferred charges are primarily deferred financing costs that are amortized over the life of the debt.
New Accounting Standards	Recent Adopted Accounting Pronouncements In April 2015, the Financial Accounting Standards Board ("FASB") issued new accounting guidance that changed the presentation of debt issuance costs in financial statements. The primary objective of this accounting guidance was to present these costs in the balance sheet as a direct deduction from the related debt liability rather than as an asset. Amortization of the costs is still reported as interest expense. The Company adopted this guidance on April 1, 2016 on a retrospective basis. On the condensed consolidated balance sheets, $10,810 and $9,875 were reclassified from Other Deferred Charges to Long-Term Debt at September 30, 2015 and March 31, 2016, respectively. New Accounting Standards Recent Adopted Accounting Pronouncements In April 2015, the Financial Accounting Standards Board ("FASB") issued new accounting guidance that changed the presentation of debt issuance costs in financial statements. The primary objective of this accounting guidance was to present these costs in the balance sheet as a direct deduction from the related debt liability rather than as an asset. Amortization of the costs is still reported as interest expense. The Company adopted this guidance on April 1, 2016 on a retrospective basis. On the condensed consolidated balance sheets, $10,810 and $9,875 were reclassified from Other Deferred Charges to Long-Term Debt at September 30, 2015 and March 31, 2016, respectively. See Note 21 "Restatement of Previously Reported Financial Information" to the "Notes to Condensed Consolidated Financial Statements." 1. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (continued) Recent Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued new accounting guidance that outlines a single comprehensive model to use in accounting for revenue from contracts with customers. The primary objective of this accounting guidance is to recognize revenue that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. This accounting guidance, as amended, is effective for the Company on April 1, 2018. The Company is currently evaluating the impact of this new guidance. In August 2014, the FASB issued new accounting guidance on determining when and how to disclose going concern uncertainties in the financial statements. The primary objective of this accounting guidance is for management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date the financial statements are issued and provide certain disclosures if conditions or events raise substantial doubt about the entity’s ability to continue as a going concern. This accounting guidance is effective for the Company on March 31, 2017. The Company is currently evaluating the impact of this new guidance. In May 2015, the FASB issued new accounting guidance for disclosures of investments that calculate net asset value per share (or its equivalent). The primary objective is to reduce the diversity in practice on how these investments are categorized in the fair value hierarchy. This accounting guidance is effective for the Company on March 31, 2017. The Company is currently evaluating the impact of this new guidance. In July 2015, the FASB issued new accounting guidance that simplifies the measurement of inventory. Under the previous accounting guidance, an entity measured inventory at the lower of cost or market with market defined as one of three different measures. The primary objective of this accounting guidance is to require a single measurement of inventory at the lower of cost and net realizable value. This accounting guidance is effective for the Company on April 1, 2017. The Company is currently evaluating the impact of this new guidance. In January 2016, the FASB issued new accounting guidance regarding certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The primary objective of this accounting guidance is to provide users of financial statements with more decision-useful information. The accounting guidance will be effective for the Company on April 1, 2018. The Company is currently evaluating the impact of this guidance. In February 2016, the FASB issued new accounting guidance regarding the treatment of leases. The primary objective of this accounting guidance is to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. This accounting guidance will be effective for the Company April 1, 2020. The Company is currently evaluating the impact of this new guidance. In March 2016, the FASB issued new accounting guidance for simplifying the treatment of employee share-based payments. The primary objective is improve areas of GAAP for which cost and complexity can be reduced while maintaining or improving the usefulness of information provided to users of financial statements. This accounting guidance will be effective for the Company on April 1, 2017. The Company is currently evaluating the impact of this new guidance. In June 2016, the FASB issued new accounting guidance on the measurement of credit losses on financial instruments. The primary objective is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. This accounting guidance will be effective for the Company on April 1, 2020. The Company is currently evaluating the impact of this new guidance. In August of 2016, the FASB issued new accounting guidance that clarifies the classification of certain cash receipts and cash payments. The primary objective is to reduce the diversity in practice on how these activities are presented on the statement of cash flows. This accounting guidance will be effective for the Company on March 31, 2018. The company is currently evaluating the impact of this new guidance.