Reconciliation of Changes in Uncertain Tax Positions (Detail) $ in Thousands	12 Months Ended
Mar. 31, 2016 USD ($)
Income Tax Disclosure [Abstract]
Total amount of unrecognized tax benefits as of April 1, 2015	$ 480
Gross increases in unrecognized tax benefits as a result of tax positions taken during a prior period	0
Gross decreases in unrecognized tax benefits as a result of tax positions taken during a prior period	0
Gross increases in unrecognized tax benefits as a result of tax positions taken during the current period	0
Gross decreases in unrecognized tax benefits as a result of tax positions taken during the current period	0
Decreases in unrecognized tax benefits relating to settlements with taxing authorities	(480)
Reductions to unrecognized tax benefits as a result of lapse of statute of limitations	0
Total amount of unrecognized tax benefits as of March 31, 2016	$ 0

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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