Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013	Jan. 31, 2012
Current assets:
Cash and cash equivalents	$ 97,315	$ 109,688
Accounts receivable, net of allowance of $1,094 and $963 at January 31, 2013 and 2012, respectively	16,113	23,747
Deferred tax assets, net	5,730	5,015
Prepaid expenses and other current assets	9,405	7,779
Total current assets	128,563	146,229
Property and equipment, net	4,314	4,879
Intangible assets, net	45,661	77,264
Goodwill	462,400	462,400
Other long-term assets	5,089	3,600
Total assets	646,027	694,372
Current liabilities:
Accounts payable	2,330	1,515
Accrued expenses	17,507	18,916
Accrued interest payable	4,614	7,030
Income taxes payable		683
Deferred revenue	67,056	68,861
Total current liabilities	91,507	97,005
Long-term debt	410,042	442,765
Long-term deferred revenue	9,026	9,443
Deferred tax liabilities, net	9,326	20,835
Other long-term liabilities	4,563	5,423
Total liabilities	524,464	575,471
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued and outstanding; Series A Preferred stock, $0.01 par value; 1 share authorized, issued and outstanding
Common stock, $0.01 par value; 200,000,000 shares authorized; 99,084,473 and 98,392,478 shares issued and outstanding at January 31, 2013 and 2012, respectively	991	984
Additional paid-in capital	516,986	516,578
Accumulated other comprehensive loss	(1,809)	(1,573)
Accumulated deficit	(394,605)	(397,088)
Total stockholders' equity	121,563	118,901
Total liabilities and stockholders' equity	646,027	694,372
Series A Preferred Stock [Member]
Stockholders' equity:
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued and outstanding; Series A Preferred stock, $0.01 par value; 1 share authorized, issued and outstanding