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Investment in Affiliate	12 Months Ended
Investment in Affiliate	Mar. 31, 2017
Investment in Affiliate [Abstract]
Investment in Affiliate	Note 11: Investment in Affiliate The Company owns 50 percent of Nikkei Heat Exchanger Company, Ltd. (“NEX”). The Company accounts for its investment in this non-consolidated affiliate using the equity method. At March 31, 2017 and 2016, the Company included its investment in NEX of $3.3 million and $3.2 million, respectively, within other noncurrent assets on the consolidated balance sheets. At March 31, 2017, the investment in NEX is equal to the Company's investment in the underlying assets. The Company reports its equity in earnings from NEX within other income and expense in the consolidated statements of operations, using a one-month reporting delay. The Company’s share of NEX’s earnings for the years ended March 31, 2017, 2016, and 2015 was $0.1 million, $0.1 million, and $0.6 million, respectively.