Accounts Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 95,020	$ 97,764
Less allowances for discounts, returns and uncollectible accounts	(9,444)	(9,906)
Accounts receivable, net	85,576	87,858
Trade accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	93,064	95,411
Other receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 1,956	$ 2,353