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Accounts Payable and Accrued Expenses - Schedule of Product Warranty Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Product Warranties Disclosures [Abstract]
Balance at beginning of period	$ 3,344	$ 2,855	$ 3,934	$ 3,207
Change in accruals for warranties during the period	429	974	423	903
Settlements during the period	(500)	(462)	(1,084)	(743)
Balance at end of period	$ 3,273	$ 3,367	$ 3,273	$ 3,367

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- References

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 460



-SubTopic 10



-Section 25



-Paragraph 5



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Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

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



-Publisher FASB



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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates).

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



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