Schedule II Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Excess and obsolete inventory reserves [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning	$ 17,386	$ 18,040	$ 18,900
Additions Charged to Expense	2,260	2,522	3,586
Additions from Acquisitions	0	0	0
Reductions from Reserves	(3,022)	(3,176)	(4,392)
Other	0	0	(54)
Balance, ending	16,624	17,386	18,040
Allowance for doubtful accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning	5,949	6,300	6,273
Additions Charged to Expense	1,638	4,324	3,556
Additions from Acquisitions	0	0	0
Reductions from Reserves	(2,478)	(4,674)	(3,531)
Other	0	(1)	2
Balance, ending	$ 5,109	$ 5,949	$ 6,300

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Total of the adjustments in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

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