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Restructuring - Schedule of Restructuring Charges and Cash Payments (Detail) - USD ($) $ in Thousands | 6 Months Ended
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Sep. 30, 2015 | Sep. 30, 2014
Restructuring Cost And Reserve [Line Items] |  |
Accrued restructuring balance | $ 180 | $ 844
Charges to operations | 33 | 1,445
Cash payments | (213) | (1,509)
Accrued restructuring balance |  | 780
Severance Pay And Benefits |  |
Restructuring Cost And Reserve [Line Items] |  |
Accrued restructuring balance | 180 | 844
Charges to operations | (5) | 632
Cash payments | (175) | (696)
Accrued restructuring balance |  | 780
Facility Exit And Relocation Costs |  |
Restructuring Cost And Reserve [Line Items] |  |
Charges to operations | 38 | 814
Cash payments | $ (38) | $ (814)

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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