STOCK-BASED COMPENSATION (Details) (USD $)	3 Months Ended
	Apr. 30, 2015		Apr. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	$ 1,306,000		$ 876,000
Weighted Average Assumptions Used to Value SAR [Abstract]
Expected life in years	0 years	[1],[2]	3 years 9 months	[1]
Risk free interest rate (in hundredths)	0.00%	[2],[3]	1.14%	[3]
Volatility (in hundredths)	0.00%	[2],[4]	49.00%	[4]
Dividend rate (in hundredths)	0.00%	[2],[5]	2.44%	[5]
Stock Appreciation Rights (SARs) [Member]
Stock Appreciation Rights (SARs) [Roll Forward]
Outstanding at beginning of period (in shares)	2,499,000
Granted (in shares)	0
Exercised (in shares)	(118,000)
Expired (in shares)	(10,000)
Forfeited (in shares)	0
Outstanding at end of period (in shares)	2,371,000
Vested and expected to vest (in shares)	2,359,000	[6]
Vested and exercisable (in shares)	1,198,000
Weighted Average Exercise Price per Share [Abstract]
Outstanding at beginning of period (in dollars per shares)	$ 12.69
Granted (in dollars per share)	$ 0
Exercised (in dollars per shares)	$ 11.00
Expired (in dollars per shares)	$ 14.76
Forfeited (in dollars per shares)	$ 0
Outstanding at end of period (in dollars per shares)	$ 12.76
Vested and expected to vest (in dollars per share)	$ 12.77	[6]
Vested and exercisable (in dollars per share)	$ 10.48
Additional Disclosures [Abstract]
Weighted average remaining contractual term, outstanding at end of period	5 years
Weighted average remaining contractual term, vested and expected to vest at end of period	5 years	[6]
Weighted average remaining contractual term, vested and exercisable at end of period	4 years
Aggregate intrinsic value, outstanding at end of period	26,123,000
Aggregate intrinsic value, vested and expected to vest at end of period	25,978,000	[6]
Aggregate intrinsic value, vested and exercisable at end of period	15,866,000
Total intrinsic value of SARs exercised	1,500,000
Number of shares withheld for payment of taxes (in shares)	15,600
Value of shares withheld for payment of taxes	400,000
Total unrecognized compensation cost	4,800,000
Weighted-average period to recognize total unrecognized compensation cost	2 years 4 months 24 days
Restricted Stock Units (RSUs) [Member]
Additional Disclosures [Abstract]
Number of shares withheld for payment of taxes (in shares)	600
Value of shares withheld for payment of taxes	14,000
Total unrecognized compensation cost	6,700,000
Weighted-average period to recognize total unrecognized compensation cost	2 years 7 months 6 days
Summary of Activity of RSUs [Roll Forward]
Restricted stock at beginning of period (in shares)	503,000
Granted (in shares)	60,000
Released (in shares)	(2,000)	[7]
Forfeited (in shares)	(5,000)
Restricted stock at end of period (in shares)	556,000
Weighted Average Grant Date Fair Value [Abstract]
Restricted stock at beginning of period (in dollars per share)	$ 16.27
Granted (in dollars per share)	$ 21.93
Released (in dollars per share)	$ 13.09	[7]
Forfeited (in dollars per share)	$ 16.79
Restricted stock at end of period (in dollars per share)	$ 16.88
Cost of Subscription [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	12,000		8,000
Cost of Maintenance and Other Revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	46,000		29,000
Cost of Professional Services [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	119,000		87,000
Sales and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	261,000		127,000
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	148,000		92,000
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation	$ 720,000		$ 533,000

[1] The expected life of SARs granted under the stock-based compensation plans is based on historical vested SAR exercise and post-vest forfeiture patterns and includes an estimate of the expected term for SARs that were fully vested and outstanding.

[2] There were no SARs granted during the three months ended April 30, 2015.

[3] The risk-free interest rate is based on the U.S. Treasury yield for a term consistent with the expected life of SARs in effect at the time of grant.

[4] The Company estimates the volatility of its common stock at the date of grant based on the historical volatility of the Company's common stock for a period equivalent to the expected life of the SARs, which it believes is representative of the expected volatility over the expected life of the SARs.

[5] The Company expects to continue paying quarterly dividends at the same rate as the three months ending on April 30, 2015.

[6] The expected-to-vest SARs are the result of applying the pre-vesting forfeiture rate assumptions to total outstanding SARs.

[7] The number of RSUs released includes shares withheld on behalf of employees to satisfy statutory tax withholding requirements.