Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows

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Condensed Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jul. 31, 2013
Jul. 31, 2012
Operating activities    
Net loss $ (36,374) $ (25,643)
Adjustments to reconcile net loss to net cash used in operating activities    
Depreciation and amortization 4,902 3,336
Loss on disposition of assets   23
Stock-based compensation 17,923 11,537
Amortization of premium on investments 53 192
Amortization of debt issuance costs 132 132
Changes in assets and liabilities    
Accounts receivable (19,470) (13,649)
Prepaid expenses and other assets (692) (676)
Accounts payable and accrued liabilities 5,247 1,717
Accrued royalties (270) 6,531
Accrued compensation (1,458) 2,610
Deferred revenue 14,582 4,913
Reimbursement of cost of leasehold improvements 498 1,243
Net cash used in operating activities (14,927) (7,734)
Investing activities    
Purchases of property and equipment (10,631) (3,887)
Purchases of patents (8,000)  
Changes in restricted cash (3,200)  
Purchases of short-term investments (17,827) (35,093)
Proceeds from maturities of short-term investments 25,710 48,560
Payments related to acquisition (400)  
Net cash provided by (used in) investing activities (14,348) 9,580
Financing activities    
Borrowings under debt arrangements 10,000  
Proceeds from issuance of common stock 7,218 3,567
Net cash provided by financing activities 17,218 3,567
Effects of foreign currency translation (58)  
Net increase (decrease) in cash and cash equivalents (12,115) 5,413
Cash and cash equivalents at beginning of period 65,725 44,126
Cash and cash equivalents at end of period $ 53,610 $ 49,539