Valuation and Qualifying Accounts Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Allowance for doubtful accounts
Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 11,393	$ 7,562	$ 9,446
Additions Charged to Expense	1,794	4,749	1,125
Charge-Offs	(173)	(649)	(2,315)
Purchase accounting adjustments	0	0	0
Other	(352)	(269)	(694)
Balance at End of Period	12,662	11,393	7,562
Allowance for inventory valuation
Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	23,570	20,242	20,316
Additions Charged to Expense	9,451	10,052	9,306
Charge-Offs	(14,219)	(6,534)	(7,707)
Purchase accounting adjustments	0	0	0
Other	(341)	(190)	(1,673)
Balance at End of Period	18,461	23,570	20,242
Deferred tax asset-valuation allowance
Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	25,416	20,063	23,583
Additions Charged to Expense	4,305	6,670	4,222
Charge-Offs	(2,255)	(361)	(3,796)
Purchase accounting adjustments	0	0	(327)
Other	(413)	(956)	(3,619)
Balance at End of Period	$ 27,053	$ 25,416	$ 20,063

Valuation Allowances and Reserves, Acquisitions

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from adjustments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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- Definition

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.

+ References

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- Definition

Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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- Definition

Total of the deductions 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 established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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