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Balance Sheet Information - Schedule of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Sep. 24, 2011	Jun. 30, 2012 GEN-PROBE INCORPORATED [Member]	Dec. 31, 2011 GEN-PROBE INCORPORATED [Member]	Dec. 31, 2010 GEN-PROBE INCORPORATED [Member]
Inventory [Line Items]
Raw materials and supplies			$ 24,634	$ 19,429	$ 16,915
Work in process			29,341	27,464	21,446
Finished goods			36,914	30,993	28,055
Inventories	$ 367,191	$ 230,544	$ 90,889	$ 77,886	$ 66,416

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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