Inventories, Net - Components of Inventories (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Inventory [Line Items]
Raw materials	$ 15,140	$ 14,843
Work-in-process	22,296	25,072
Total	70,926	76,842
Instruments [Member]
Inventory [Line Items]
Finished goods	2,596	2,260
Kits and Reagents [Member]
Inventory [Line Items]
Finished goods	$ 30,894	$ 34,667

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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