Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Statement of Financial Position [Abstract]
Trade accounts receivable, allowances (in dollars)	$ 23,443	$ 15,569
Property and equipment, accumulated deprecation	123,299	103,090
Other intangible assets, accumulated amortization	$ 35,561	$ 26,026
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	125,000us-gaap_CommonStockSharesAuthorized	125,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares	34,567us-gaap_CommonStockSharesIssued	34,624us-gaap_CommonStockSharesIssued
Common stock, outstanding shares	34,567us-gaap_CommonStockSharesOutstanding	34,624us-gaap_CommonStockSharesOutstanding

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value per share of common stock.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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