Commitments and Contingencies - Summary of Earn-out Liability (Details) - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016	Mar. 04, 2015
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	$ 7,593	$ 6,259
Amount expected to be settled within twelve months	3,895	2,155
Compensation Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	5,777	4,397
Not Conditional Upon Continued Employment [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	1,296	1,457
Interest Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	520	405
Triune Systems [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	0	0	$ 16,200
Amount expected to be settled within twelve months	0	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	7,593	6,259
Amount expected to be settled within twelve months	3,895	2,155
Cycleo [Member] | Compensation Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	5,777	4,397
Cycleo [Member] | Not Conditional Upon Continued Employment [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	1,296	1,457
Cycleo [Member] | Interest Expense [Member]
Business Acquisition, Contingent Consideration [Line Items]
Earn-out liability booked	$ 520	$ 405