Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 66,514	$ 74,992
Less allowances for discounts, returns and uncollectible accounts	(8,276)	(9,942)
Accounts receivable, net	58,238	65,050
Trade Accounts Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	65,044	73,632
Other Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 1,470	$ 1,360