Stock Benefit Plans and Stock-Based Compensation (Details) (USD $)	3 Months Ended
	Jun. 30, 2013		Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent company match for employee 401(k) contributions (in hundredths)	33.00%
Limit on percent company match for employee 401(k) contributions (in hundredths)	2.00%
Maximum vesting percentage 401(k) (in hundredths)	100.00%
Years of service to be fully vested in 401(k) matching contributions	3 years
Stock options, weighted average fair value assumptions [Abstract]
Announced dividend per share (in dollars per share)	$ 0.50
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	$ 10,437,000		$ 8,289,000
Cost of maintenance fees [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	178,000		217,000
Cost of subscription fees [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	29,000		35,000
Cost of professional services [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	84,000		92,000
Cost of application services [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	486,000		322,000
Technology development and support [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	575,000		644,000
Sales and marketing [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	2,776,000		1,784,000
Administrative and general [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	4,518,000		5,195,000
Restructuring costs [Member]
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	1,791,000		0
Stock Options [Member]
Stock options, weighted average fair value assumptions [Abstract]
Expected volatility (in hundredths)	39.24%		41.27%
Risk-free interest rate (in hundredths)	1.54%		1.01%
Expected lives at date of grant (in years)	7 years 6 months		6 years 1 month 6 days
Weighted-average fair value of the options granted	$ 2.82		$ 3.58
Dividend yield assumption	4.41%	[1]	0.00%	[1]
Fair value of stock options vested (in dollars per share)	$ 4.19		$ 4.21
Stock Options - Service-Based Vesting [Member]
Stock option activity [Roll Forward]
Options outstanding, beginning of period (in shares)	19,076,000
Granted (in shares)	117,000
Exercised (in shares)	(885,000)
Forfeited (in shares)	(74,000)
Cancelled/expired (in shares)	(68,000)
Options outstanding, end of period (in shares)	18,166,000
Options vested and expected to vest, net of estimated forfeitures, as of end of period (in shares)	17,574,000
Options exercisable as of end of period (in shares)	11,903,000
Weighted average exercise price [Abstract]
Options outstanding (in dollars per share)	$ 8.44
Granted (in dollars per share)	$ 10.73
Exercised (in dollars per share)	$ 7.46
Forfeited (in dollars per share)	$ 11.33
Cancelled/expired (in dollars per share)	$ 10.04
Options outstanding as of end of period (in dollars per share)	$ 8.48
Options vested and expected to vest, net of estimated forfeitures, as of end of period (in dollars per share)	$ 8.45
Options exercisable as of end of period (in dollars per share)	$ 8.22
Weighted average remaining contractual term [Abstract]
Options outstanding as of end of period	6 years 4 months 17 days
Options vested and expected to vest, net of estimated forfeitures, as of end of period	6 years 3 months 18 days
Options exercisable as of end of period	5 years 4 months 10 days
Aggregate intrinsic value [Abstract]
Exercised	3,363,000
Options outstanding as of end of period	36,724,000
Options vested and expected to vest, net of estimated forfeitures, as of end of period	36,021,000
Options exercisable as of end of period	26,944,000
Stock Options - Performance and Service-Based Vesting [Member]
Stock option activity [Roll Forward]
Options outstanding, beginning of period (in shares)	3,648,000
Granted (in shares)	594,000
Forfeitures/cancelled (in shares)	(926,000)
Options outstanding, end of period (in shares)	3,316,000
Options vested and expected to vest, net of estimated forfeitures, as of end of period (in shares)	479,000
Options exercisable as of end of period (in shares)	0
Weighted average exercise price [Abstract]
Options outstanding (in dollars per share)	$ 9.79
Granted (in dollars per share)	$ 11.30
Forfeited (in dollars per share)	$ 9.92
Options outstanding as of end of period (in dollars per share)	$ 10.02
Options vested and expected to vest, net of estimated forfeitures, as of end of period (in dollars per share)	$ 11.30
Options exercisable as of end of period (in dollars per share)	$ 0
Weighted average remaining contractual term [Abstract]
Options outstanding as of end of period	9 years 3 months 29 days
Options vested and expected to vest, net of estimated forfeitures, as of end of period	9 years 10 months 17 days
Options exercisable as of end of period	0 days
Aggregate intrinsic value [Abstract]
Options outstanding as of end of period	1,800,000
Options vested and expected to vest, net of estimated forfeitures, as of end of period	0
Options exercisable as of end of period	0
Aggregate Intrinsic Value [Abstract]
Total stock-based compensation expense before income taxes	327,000
Unrecognized compensation cost, net of estimated forfeitures	27,400,000
Unrecognized compensation cost, weighted-average period of recognition	1 year 10 months 24 days
Quarterly dividend (in dollars per share)	$ 0.125
Perfomance-based Restricted Stock Unit Awards [Member]
Non-vested restricted stock units and performance-based restricted stock unit awards [Roll Forward]
Granted (in shares)	31,000
Covisint LTIP (2009) [Member] | Stock Options [Member]
Stock option activity [Roll Forward]
Options outstanding, end of period (in shares)	4,300,000
Expense expected to be recognized related to stock options oustanding under the 2009 Covisint LTIP on the vest date	24,700,000
Aggregate Intrinsic Value [Abstract]
Stock split approved by board of directors	30-for-1
Expense Expected To Be Recognized Related To Initial Public Offering Expenses	70.00%
Covisint LTIP (2009) [Member] | Perfomance-based Restricted Stock Unit Awards [Member]
Non-vested restricted stock units and performance-based restricted stock unit awards [Roll Forward]
Non-vested awards outstanding as of end of period (in shares)	1,500,000
Aggregate Intrinsic Value [Abstract]
Vested PSAs for a change in control transaction or an incomplete IPO (in shares)	1,100,000
LTIP (2007) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of employee compensation allowed to be withheld (in hundredths)	10.00%
Discount rate for purchase of common stock (in hundredths)	5.00%
LTIP (2007) [Member] | Non-vested RSU [Member]
Non-vested restricted stock units and performance-based restricted stock unit awards [Roll Forward]
Non-vested awards outstanding as of beginning of period (in shares)	4,850,000
Granted (in shares)	327,000
Dividend Equivalents Issued (in shares)	45,000
Released (in shares)	(354,000)
Forfeited (in shares)	(45,000)
Non-vested awards outstanding as of end of period (in shares)	4,823,000
Weighted Average Grant-Date Fair Value [Abstract]
Granted (in dollars per share)	$ 11.60
Dividend Equivalents Issue (in dollars per share)	$ 10.93
Aggregate Intrinsic Value [Abstract]
Released	4,039,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense recognized related to 401(k) program	$ 1,300,000		$ 1,300,000

[1] In January 2013, our Board of Directors announced its intention to begin paying cash dividends totaling $0.50 per share annually, to be paid quarterly beginning in the first quarter of fiscal 2014. Prior to that, the Company had never paid a dividend or announced any intentions to pay a dividend.