Debt - Schedule of Future Principal Repayments of Long-Term Debt (Details) $ in Thousands	Jan. 31, 2016 USD ($)
Debt Instrument [Line Items]
Capital Leases, Payments Due by 2016	$ 618
Total Payments Due by 2016	1,292
Capital Leases, Payments Due by 2017	93
Total Payments Due by 2017	991
Capital Leases, Payments Due by 2018	0
Total Payments Due by 2018	898
Capital Leases, Payments Due by 2019	0
Total Payments Due by 2019	6,064
Capital Lease	711
Total	9,245
Senior Notes
Debt Instrument [Line Items]
Debt Payments Due by 2016	674
Debt Payments Due by 2017	898
Debt Payments Due by 2018	898
Payments Due by 2019	6,064
Long-term Debt	$ 8,534

Amount of minimum lease payments for capital leases due in the next 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.

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