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Asset Acquisition - Narrative (Details) $ / shares in Units, $ in Thousands | Jun. 22, 2023 USD ($) $ / shares shares
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Asset Acquisition [Line Items] |
Cost to acquire asset | $ | $ 113,200
Spyre Therapeutics, Inc. |
Asset Acquisition [Line Items] |
Cost to acquire asset | $ | $ 113,176
Asset acquisition consideration transferred issuable shares of common stock on an as-converted basis | 14,595,480
Spyre 2023 Equity Incentive Plan | Spyre Therapeutics, Inc. |
Asset Acquisition [Line Items] |
Number of outstanding and unexercised stock options to purchase (in shares) | 2,734
Series A Non Voting Convertible Preferred Stock | Spyre Therapeutics, Inc. |
Asset Acquisition [Line Items] |
Number of shares transferred as equity interest in asset acquisition | 364,887
Shares issued, price per share (in dollars per share) | $ / shares | $ 291.08
Common Stock | Spyre Therapeutics, Inc. |
Asset Acquisition [Line Items] |
Number of shares transferred as equity interest in asset acquisition | 517,809
Shares issued, price per share (in dollars per share) | $ / shares | $ 7.277

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