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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2021
Summary of Significant Accounting Policies [Abstract] |
Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis | September 30, 2021 December 31, 2020(in thousands)Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 TotalAssets Cash and cash equivalents: Cash and money market funds $ 364,020 $ — $ — $ 364,020 $ 43,040 $ — $ — $ 43,040 Commercial paper — 61,368 — 61,368 — 32,537 — 32,537 U.S. government & agency securities — — — — — 170 — 170 U.S. Treasury security — — — — — 5,864 — 5,864 Total cash and cash equivalents 364,020 61,368 — 425,388 43,040 38,571 — 81,611 Investments: Commercial paper — 255,817 — 255,817 — 112,644 — 112,644 Corporate debt securities — 13,595 — 13,595 — 17,456 — 17,456 U.S. government & agency securities — 385,090 — 385,090 — 107,103 — 107,103 Total investments — 654,502 — 654,502 — 237,203 — 237,203 Short-term restricted cash: Cash 500 — — 500 836 — — 836 Long-term restricted cash: Cash 4,560 — — 4,560 3,500 — — 3,500 Total assets measured at fair value $ 369,080 $ 715,870 $ — $ 1,084,950 $ 47,376 $ 275,774 $ — $ 323,150 Liabilities Continuation Advances $ — $ — $ — $ — $ — $ — $ — $ —Contingent consideration — — 168,574 168,574 — — — —Total liabilities measured at fair value $ — $ — $ 168,574 $ 168,574 $ — $ — $ — $ —
Computation of Basic and Diluted Net Income (Loss) per Share | Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020Numerator: Net income (loss) $ 16,542 $ (23,708) $ (111,894) $ (45,532) Denominator: Basic Weighted average shares used in computing net income (loss) per share, basic 202,194 166,862 198,545 158,195Net income (loss) per share, basic $ 0.08 $ (0.14) $ (0.56) $ (0.29) Diluted Weighted average shares used in computing net income (loss) per share, basic 202,194 166,862 198,545 158,195Add: Weighted average stock options 7,754 — — —Add: Weighted average restricted stock units 3,598 — — —Add: Weighted average shares issuable pursuant to ESPP 1,581 — — —Weighted average shares used in computing net income (loss) per share, diluted 215,127 166,862 198,545 158,195Net income (loss) per share, diluted $ 0.08 $ (0.14) $ (0.56) $ (0.29)
Anti-dilutive Shares Excluded from Computation of Diluted Net Income (Loss) per Share | Three Months Ended September 30, Nine Months Ended September 30,(in thousands) 2021 2020 2021 2020Shares issuable upon conversion of convertible senior notes 20,690 — 17,203 —Options to purchase common stock 2,326 19,921 12,703 19,921RSUs with time-based vesting 2,006 5,971 6,835 5,971RSUs with performance-based vesting — 94 — 94ESPP shares 126 2,890 1,564 2,890

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19279-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=123874694&loc=SL7498348-110258 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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