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Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Total revenues	$ 330.2	$ 239.9	$ 242.6	$ 304.8	$ 732.9	$ 286.3	$ 377.4	$ 377.0	$ 1,117.5	$ 1,773.6	$ 1,577.3
Less: Cost of sales:
Cost of goods and services sold									693.1	748.1	537.0
Consolidated gross margin									383.0	891.3	925.2
Products:
Changes in fair value of contingent consideration									2.6	2.9	31.7
Consolidated adjusted gross margin									437.0	894.2	956.9
Other reconciling items:
Adjustments to gross margin									(54.0)	(2.9)	(31.7)
Research and development									(188.3)	(235.2)	(237.9)
Selling, general and administrative									(339.5)	(348.7)	(304.1)
Goodwill impairment									(6.7)	(41.7)	0.0
Amortization of intangible assets									(59.9)	(58.5)	(59.8)
Interest expense									(37.3)	(34.5)	(31.3)
Other, net									(11.7)	(3.7)	4.7
Income (loss) before income taxes									(219.0)	303.2	411.9
Contracts and grants
Revenues:
Revenue									41.4	134.2	115.1
Products And Services Segments
Revenues:
Revenue									1,076.1	1,639.4	1,462.2
Products
Revenues:
Revenue									966.2	1,023.9	989.8
Less: Cost of sales:
Cost of goods and services sold									424.6	382.6	392.0
Consolidated gross margin									541.6	641.3	597.8
Products:
Changes in fair value of contingent consideration									2.6	2.9	31.7
Inventory step-up provision									51.4	0.0	0.0
Consolidated adjusted gross margin									595.6	644.2	629.5
Other reconciling items:
Goodwill impairment									0.0	(41.7)
Services
Revenues:
Revenue									109.9	615.5	472.4
Less: Cost of sales:
Cost of goods and services sold									268.5	365.5	145.0
Consolidated gross margin									(158.6)	250.0	327.4
Products:
Consolidated adjusted gross margin									(158.6)	250.0	$ 327.4
Other reconciling items:
Goodwill impairment									$ (6.7)	$ 0.0

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