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v3.19.1

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 29, 2019 | Mar. 30, 2018
Statement of Cash Flows [Abstract] |  |  |
Net income |  | $ 75,775 | $ 115,857
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization |  | 1,962 | 371
Stock-based compensation expense |  | 12,529 | 9,305
401(k) matching contributions made in common stock |  | 2,469 | 1,880
Amortization and other right-of-use assets |  | (7,730) | 0
Gain on other equity investments |  | 0 | (209)
Other |  | (1,415) | (158)
Changes in assets and liabilities: |  |  |
Trade receivables, net |  | 55,101 | (10,819)
Other receivables |  | 8,741 | 64
Inventory, net |  | (305) | (906)
Unbilled collaboration revenue |  | (7,753) | (38,014)
Prepaid expenses and other current assets |  | 871 | 1,900
Other long-term assets |  | (4,854) | (346)
Accounts payable |  | (1,294) | (183)
Accrued compensation and benefits |  | (9,592) | (317)
Accrued clinical trial liabilities |  | 4,824 | (4,498)
Rebates and fees due customers |  | 4,754 | 4,424
Accrued collaboration liabilities |  | 137 | (1,000)
Current and long-term deferred revenue |  | (1,313) | (2,652)
Long-term portion of lease liabilities |  | 7,517 | (35)
Other current and long-term liabilities |  | 21,169 | (2,856)
Net cash provided by operating activities |  | 161,593 | 71,808
Cash flows from investing activities: |  |  |
Purchases of Property and equipment and other, net |  | (2,307) | (2,947)
Purchases of investments |  | (239,869) | (116,537)
Proceeds from maturities of investments |  | 129,820 | 87,504
Proceeds from sale of investments |  | 4,699 | 6,238
Proceeds from other equity investments |  | 0 | 209
Net cash used in investing activities |  | (107,657) | (25,533)
Cash flows from financing activities: |  |  |
Proceeds from exercise of stock options |  | 6,817 | 1,875
Taxes paid related to net share settlement of equity awards |  | (1,580) | (2,129)
Principal payments on financing lease obligation |  | (11) | 0
Net cash provided by (used in) financing activities |  | 5,226 | (254)
Net increase in cash, cash equivalents and restricted cash |  | 59,162 | 46,021
Cash, cash equivalents and restricted cash at beginning of period |  | 315,875 | 188,314
Cash, cash equivalents and restricted cash at end of period |  | 375,037 | 234,335
Supplemental cash flow disclosure |  |  |
Right-of-use assets obtained in exchange for lease obligations | [1] | 8,170 | 17,180
Unpaid liabilities incurred to acquire Property and equipment |  | $ 141 | $ 6,608
[1] | Amounts for the three months ended March 31, 2019 include receipt of a tenant inventive payment. Amounts for the three months ended March 31, 2018 include the transition adjustment for the adoption of Accounting Standards Codification (ASC) Topic 842, Leases.

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- Definition Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3151-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale and maturity (principal being due) of other investments, prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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