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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Related Party Transactions (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Accounts due from related parties	$ 3,351		$ 3,351		$ 3,260
Revenue from contract with customer	4,866	$ 10,813	17,964	$ 38,606
Commercial supply revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	1,252	3,370	5,843	8,160
Collaborative revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	2,471	7,443	10,631	15,446
Royalty revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	167		415
License and milestone fees
Related Party Transaction [Line Items]
Revenue from contract with customer	910		910	15,000
Affiliated Entity [Member] \| CSL Vifor Profit Sharing [Member] \| Collaborative revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	1,932	7,443	10,092	15,446
Affiliated Entity [Member] \| CSL Vifor Kapruvia [Member] \| Royalty revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	$ 167	0	$ 415	0
Affiliated Entity [Member] \| Vifor International Ltd. [Member]
Related Party Transaction [Line Items]
Shares owned as a result of upfront and milestone payments	7,396,770		7,396,770
Related party ownership percentage	13.60%		13.60%
Affiliated Entity [Member] \| CSL Vifor [Member]
Related Party Transaction [Line Items]
Accounts due from related parties	$ 3,351		$ 3,351		$ 3,260
Affiliated Entity [Member] \| CSL Vifor [Member] \| Commercial supply revenue
Related Party Transaction [Line Items]
Revenue from related parties	1,252	3,370	5,843	8,160
Related party cost of goods sold	1,558	3,055	5,566	5,136
Affiliated Entity [Member] \| CSL Vifor [Member] \| CSL Vifor Profit Sharing [Member] \| Collaborative revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	1,932	$ 7,443	10,092	15,446
Affiliated Entity [Member] \| CSL Vifor [Member] \| CSL Vifor Kapruvia [Member] \| Royalty revenue
Related Party Transaction [Line Items]
Revenue from contract with customer	$ 167		$ 415
Affiliated Entity [Member] \| Vifor Fresenius Medical Care Renal Pharma Ltd. [Member] \| Vifor Agreement No 2 [Member] \| License and milestone fees
Related Party Transaction [Line Items]
Revenue from related parties				$ 15,000