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Inventory - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Inventory
Inventory write-downs	$ 52,595,000	$ 26,000,000	$ 5,133,000
Prepayment made for manufacturing services	23,657,000	17,880,000
Prepayments made to a CMO for manufacturing services for UDENYCA	12,600,000	13,000,000.0
Prepayments made to a CMO For Other Research And Development Pipeline Program	11,100,000	4,900,000
Impairment charge within research and development expenses			3,210,000
Research And Development Expense	109,436,000	199,358,000	363,105,000
Expense relating to the discontinuation of CHS-2020			0
Cost of Goods Sold
Inventory
Inventory write-downs	52,600,000
Certain firm purchase commitments	20,500,000
Accrued and other current liabilities
Inventory
Certain firm purchase commitments, Short-term	11,500,000
other liabilities, non-current
Inventory
Certain firm purchase commitments, Long-term	9,000,000.0
YUSIMRY | Cost of Goods Sold
Inventory
Inventory write-downs	$ 47,000,000.0
UDENYCA | Cost of Goods Sold
Inventory
Inventory write-downs		$ 26,000,000.0
CHS-2020
Inventory
Impairment charge for the write-off of prepaid manufacturing services no longer deemed to have future benefits			3,200,000
Research And Development Expense			$ 11,200,000

X

- Definition

The minimum amount the entity agreed to spend under the long-term and short-term purchase commitment.

+ References

No definition available.

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Prepaid Manufacturing current.

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- Definition

Represents prepayments made to a CMO for manufacturing services.

+ References

No definition available.

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- Definition

Represents prepayments made to a CMO for other research and development program.

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No definition available.

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- Definition

The minimum amount the entity agreed to spend under the short-term purchase commitment.

+ References

No definition available.

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- Definition

Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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- Definition

Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Nonrecurring impairment charges related to the write-off of production-related equipment and inventory. This tag is used when an Entity charges this cost to cost of goods sold.

+ References

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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