Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows

v2.4.0.8
Condensed Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Operating activities    
Net loss $ (42,684) $ (49,680)
Adjustments to reconcile net loss to net cash used in operating activities    
Depreciation and amortization 11,224 7,718
Stock-based compensation 60,116 28,826
Amortization of premium on investments 2,106 87
Amortization of debt issuance costs 148 192
Changes in assets and liabilities    
Accounts receivable (33,493) (27,058)
Prepaid expenses and other assets (4,288) (6,946)
Accounts payable and accrued liabilities 5,807 14,228
Accrued royalties 5,416 7,903
Accrued compensation 12,579 (2,245)
Deferred revenue (24,407) 13,707
Reimbursement of cost of leasehold improvements 3,161 1,555
Net cash used in operating activities (4,315) (11,713)
Investing activities    
Purchases of property and equipment (23,194) (15,391)
Purchases of patents 0 (8,000)
Purchases of investments (273,427) (24,634)
Proceeds from maturities of investments 186,667 44,290
Payments related to acquisition 0 (400)
Net cash used in investing activities (109,954) (4,135)
Financing activities    
Borrowings under debt arrangements 0 10,000
Repayments of debt 0 (10,000)
Proceeds from follow-on offering, net of issuance costs 0 379,309
Proceeds from exercise of stock options 15,168 14,640
Payment of debt issuance costs in connection with the debt refinancing 0 (450)
Tax withholdings related to net share settlements of restricted stock units (1,986) (480)
Proceeds from employee stock purchase plan 4,388 0
Net cash provided by financing activities 17,570 393,019
Effect of exchange rate changes on cash and cash equivalents (172) (28)
Net increase (decrease) in cash and cash equivalents (96,871) 377,143
Cash and cash equivalents at beginning of period 245,755 59,939
Cash and cash equivalents at end of period 148,884 437,082
Supplemental disclosures of cash flow information    
Cash paid during the period for interest 314 294
Purchases of property and equipment recorded in accounts payable and accrued liabilities $ 2,550 $ 1,711