Condensed Consolidated Statements Of Cash Flows (USD $)
In Thousands | 9 Months Ended |
|---|
Sep. 24, 2011 | Sep. 25, 2010 |
|---|
| Operating activities | | |
| Net loss | $ (47,336) | $ (17,815) |
| Adjustments to reconcile net loss to net cash provided by operating activities: | | |
| Amortization of premiums relating to available-for-sale securities | 229 | 740 |
| Depreciation and amortization | 5,949 | 3,692 |
| Loss on retirement of property and equipment | 2,278 | |
| Amortization of intangible assets | 13,526 | 4,635 |
| Revaluation of warranty liability | | 173 |
| Stock-based compensation | 17,237 | 17,482 |
| Changes in operating assets and liabilities: | | |
| Change in restricted cash | | 629 |
| Accounts receivable, net | 12,329 | 14,111 |
| Inventory | 9,634 | (6,364) |
| Deferred cost of revenue | (1,161) | 6,041 |
| Prepaids and other assets | (2,291) | 1,423 |
| Accounts payable | (10,126) | (5,850) |
| Accrued liabilities | 2,850 | (2,663) |
| Deferred revenue | 5,800 | (7,939) |
| Other long-term liabilities | (179) | 82 |
| Net cash provided by operating activities | 8,739 | 8,377 |
| Investing activities | | |
| Purchase of property and equipment | (6,271) | (3,923) |
| Acquisition of Occam Networks, net of cash assumed (Note 3) | (60,809) | |
| Purchase of marketable securities | | (74,577) |
| Sales and maturities of marketable securities | 29,755 | 36,060 |
| Net cash used in investing activities | (37,325) | (42,440) |
| Financing activities | | |
| Proceeds from exercise of stock options and other | 766 | 72 |
| Proceeds from issuance of common stock under employee stock purchase plan | 2,062 | |
| Taxes withheld upon vesting of restricted stock units | (10,373) | |
| Principal payments on loans | | (20,000) |
| Proceeds from initial public offering of common stock, net of issuance costs | | 57,311 |
| Net cash (used in) provided by financing activities | (7,545) | 37,383 |
| Effect of exchange rate changes on cash and cash equivalents | 76 | |
| Net (decrease) increase in cash and cash equivalents | (36,055) | 3,320 |
| Cash and cash equivalents at beginning of period | 66,304 | 31,821 |
| Cash and cash equivalents at end of period | 30,249 | 35,141 |
| Non-cash investing activities | | |
| Value of common stock issued in acquisition | 117,258 | |
| Fair value of equity awards assumed | $ 1,370 | |