v3.5.0.2
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jul. 30, 2016
Aug. 01, 2015
Cash flows from operating activities:    
Net income (loss) $ 28,626 $ (757,850)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 53,980 51,811
Share-based compensation 61,649 69,895
Amortization of acquired intangible assets 5,892 6,106
Non-cash restructuring and related charges 1,025 1,473
Other non-cash expense, net 1,950 1,721
Excess tax benefits from share-based compensation (5) (25)
Changes in assets and liabilities:    
Accounts receivable (25,383) 3,234
Inventories 7,234 (18,415)
Prepaid expenses and other assets (9,035) 11,328
Accounts payable 40,359 11,958
Accrued liabilities and other non-current liabilities (30,243) 8,058
Carnegie Mellon University accrued litigation settlement (736,000) 733,557
Accrued employee compensation (15,118) (28,931)
Deferred income 16,327 (8,468)
Net cash provided by (used in) operating activities (598,742) 85,452
Cash flows from investing activities:    
Purchases of available-for-sale securities (203,723) (566,365)
Sales of available-for-sale securities 339,837 301,896
Maturities of available-for-sale securities 146,728 167,894
Distribution from privately-held companies   208
Purchase of time deposits (125,000)  
Purchases of technology licenses (8,045) (5,677)
Purchases of property and equipment (24,377) (24,320)
Purchase of equipment previously leased   (10,240)
Net cash provided by (used in) investing activities 125,420 (136,604)
Cash flows from financing activities:    
Repurchase of common stock   (195,584)
Proceeds from employee stock plans 559 57,174
Minimum tax withholding paid on behalf of employees for net share settlement (15,382) (23,007)
Dividend payments to shareholders (61,136) (62,104)
Payments on technology license obligations (10,152) (8,799)
Excess tax benefits from share-based compensation 5 25
Net cash used in financing activities (86,106) (232,295)
Net decrease in cash and cash equivalents (559,428) (283,447)
Cash and cash equivalents at beginning of period 1,278,180 1,210,977
Cash and cash equivalents at end of period $ 718,752 $ 927,530