Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Jan. 31, 2013
Current assets:
Cash and cash equivalents	$ 198,380	$ 223,783
Short-term investments	7,833	0
Trade accounts receivable, net of allowance for doubtful accounts of $4,752 as of April 30, 2013 and $5,331 as of January 31, 2013	367,389	412,245
Other receivables	9,446	10,974
Inventory	24,141	18,036
Prepaid expenses and other	28,198	24,941
Deferred income taxes	9,538	14,973
Total current assets	644,925	704,952
Property, plant, and equipment, net of accumulated depreciation of $305,768 as of April 30, 2013 and $300,914 as of January 31, 2013	160,192	162,402
Term receivables	228,425	250,497
Goodwill	537,357	535,932
Intangible assets, net of accumulated amortization of $188,794 as of April 30, 2013 and $186,060 as of January 31, 2013	20,075	21,838
Other assets	72,298	69,663
Total assets	1,663,272	1,745,284
Current liabilities:
Short-term borrowings	1,060	5,964
Accounts payable	14,753	20,906
Income taxes payable	4,238	9,180
Accrued payroll and related liabilities	56,502	101,354
Accrued and other liabilities	36,729	40,662
Deferred revenue	234,041	233,759
Total current liabilities	347,323	411,825
Notes payable	219,937	218,546
Deferred revenue	16,064	17,755
Income tax liability	22,770	22,663
Other long-term liabilities	25,636	28,318
Total liabilities	631,730	699,107
Commitments and contingencies (Note 7)
Noncontrolling interest with redemption feature	11,649	12,698
Stockholders' equity:
Common stock, no par value, 300,000 shares authorized as of April 30, 2013 and January 31, 2013; 112,599 shares issued and outstanding as of April 30, 2013 and 112,902 shares issued and outstanding as of January 31, 2013	807,080	810,902
Retained earnings	192,787	197,178
Accumulated other comprehensive income	20,026	25,399
Total stockholders' equity	1,019,893	1,033,479
Total liabilities and stockholders' equity	$ 1,663,272	$ 1,745,284