v2.4.0.6
Consolidated Statements of Cash Flows Statement (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
CASH FLOWS FROM OPERATING ACTIVITIES:      
NET INCOME $ 89,468 $ 153,616 $ 87,256
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 23,805 22,125 22,874
Accretion of debt discount 5,567 0 0
Amortization of Financing Costs 977 0 0
Deferred revenue recognized (235,513) (283,012) (225,159)
Increase in deferred revenue 56,575 81,737 611,991
Deferred income taxes (1,210) (6,738) (43,426)
Share-based Compensation 8,115 5,801 9,789
Recognition of foreign tax credits 0 0 (19,100)
Impairment of long-term investment 1,616 0 3,926
Non-cash repositioning charge 0 0 30,568
Other (238) 80 (155)
Decrease (increase) in assets:      
Receivables 5,553 179,273 (179,013)
Deferred charges 302 3,145 4,371
Other current assets 20,723 (826) 2,965
Increase (decrease) in liabilities:      
Accounts payable (571) 417 (1,506)
Accrued compensation (7,372) 11,234 (24,140)
Accrued taxes payable (7,185) (29,825) 35,705
Other accrued expenses 5,050 (3,104) 3,748
Net cash provided by operating activities (34,338) 133,923 320,694
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of short-term investments (713,683) (696,478) (314,128)
Sales of short-term investments 703,538 568,888 156,608
Purchases of property and equipment (3,835) (2,520) (4,024)
Capitalized patent costs (27,172) (27,814) (31,285)
Capitalized technology license costs 0 0 (1,115)
Long-term investments 0 0 (650)
Net cash used in investing activities (41,152) (157,924) (194,594)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Net proceeds from exercise of stock options 4,497 21,520 7,635
Payments on long-term debt, including capital lease obligations (288) (584) (1,877)
Dividends paid (18,150) 0 0
Proceeds from note payable 230,000 0 0
Purchase of convertible bond hedge (42,665) 0 0
Proceeds from Issuance of Warrants 31,740 0 0
Payments of debt issuance costs (8,015) 0 0
Tax benefit from share-based compensation 5,131 7,653 3,881
Payments for Repurchase of Common Stock 0 0 (25,020)
Net cash provided (used) by financing activities 202,250 28,589 (15,381)
NET INCREASE IN CASH AND CASH EQUIVALENTS 126,760 4,588 110,719
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 215,451 210,863 100,144
CASH AND CASH EQUIVALENTS, END OF PERIOD 342,211 215,451 210,863
SUPPLEMENTAL CASH FLOW INFORMATION:      
Interest Paid 2,600 51 198
Income taxes paid, including foreign witholding taxes 36,593 113,820 44,853
Dividends Payable 4,570 4,526 0
Issuance of common stock for profit sharing    0 545
Accrued capitalized patent costs (4) (333) 375
Accrued purchases of property, plant and equipment (4) (333) 375
Patents [Member]
      
SUPPLEMENTAL CASH FLOW INFORMATION:      
Accrued capitalized patent costs (105) (538) 570
Accrued purchases of property, plant and equipment $ (105) $ (538) $ 570