Commitments and Contingencies - Summary of Earn-out Liability (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Jan. 29, 2017
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	$ 6,694	$ 6,068
Amount expected to be settled within twelve months	1,580
Compensation Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	5,135	4,576
Not Conditional Upon Continued Employment [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	949	949
Interest Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	610	543
Triune Systems [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	0	0
Amount expected to be settled within twelve months	0
Triune Systems [Member] | Compensation Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	0	0
Triune Systems [Member] | Not Conditional Upon Continued Employment [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	0	0
Triune Systems [Member] | Interest Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	0	0
Cycleo [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	6,694	6,068
Amount expected to be settled within twelve months	1,580
Cycleo [Member] | Compensation Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	5,135	4,576
Cycleo [Member] | Not Conditional Upon Continued Employment [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	949	949
Cycleo [Member] | Interest Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	$ 610	$ 543