Debt - Schedule of Future Principal Repayments of Long-Term Debt (Details) $ in Thousands	Apr. 30, 2016 USD ($)
Capital Lease
2016	$ 390
2017	93
2018	0
2019	0
Total repayments, capital lease	483
Total
2016	2,634
2017	991
2018	898
2019	4,326
Total repayments	8,849
Senior Notes
Senior Term Loan (1)
2016	2,244
2017	898
2018	898
2019	4,326
Total repayments, senior term loan	$ 8,366

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737