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Business Combination (Tables) | 6 Months Ended
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Jun. 30, 2023
Business Combination and Asset Acquisition [Abstract] |
Business Acquisition Unaudited Pro Forma Financial Information | The following unaudited pro forma financial information summarizes combined results of operations of Halozyme and Antares as if the companies had been combined as of the beginning of our fiscal year 2021.
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
Total revenues |  | $ | 221,038 |  |  | $ | 163,376 |  |  | $ | 383,181 |  |  | $ | 322,212 |
Net income (loss) |  | 74,754 |  |  | 60,461 |  |  | 114,369 |  |  | 96,752 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(2) -SubTopic 10 -Topic 805 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(3) -SubTopic 10 -Topic 805 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479328/805-10-50-2 + Details
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