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SUBSEQUENT EVENT | 12 Months Ended
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Dec. 31, 2021
Subsequent Events [Abstract] |
Subsequent Event | SUBSEQUENT EVENTOn February 9, 2022, the Company entered into an agreement to sell the Rare Pediatric Disease Priority Review Voucher (PRV) it received from the FDA in connection with the U.S. approval of Voxzogo. In exchange for the PRV the Company will receive a lump sum payment of $110.0 million. The transaction remains subject to customary closing conditions, including anti-trust review. The proceeds from the sale of the PRV will be recognized as a gain on the sale of nonfinancial assets on the Company's Consolidated Statement of Operations.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662 + Details
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