SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - COST OF REVENUE; CAPITALIZED SOFTWARE DEVELOPMENT (Details)	12 Months Ended
Jan. 31, 2015
Cost of Revenue [Abstract]
Maximum period of time for recognizing revenue for deferred cost of revenue classified as current (in months)	12
Software Development Costs
Software Development Costs
Estimated useful lives, (in years)	4 years
Internal-Use Software
Software Development Costs
Estimated useful lives, (in years)	4 years

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration