Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Revenues:
Total revenues		$ 156.1	$ 222.2
Operating expenses:
Cost of product and services sales, net	[1]	72.0	88.5
Research and development		10.5	15.1
Selling, general and administrative		46.6	52.4
Amortization of intangible assets		16.5	16.3
Total operating expenses		145.6	172.3
Income from operations		10.5	49.9
Other income (expense):
Interest expense		(11.0)	(14.7)
Noncash loss on assets held for sale		0.0	(12.2)
Other, net		13.9	69.7
Total other income, net		2.9	42.8
Income before income taxes		13.4	92.7
Income tax provision		6.6	24.7
Net income		$ 6.8	$ 68.0
Earnings per common share
Basic (in dollars per share)		$ 0.13	$ 1.25
Diluted (in dollars per share)		$ 0.07	$ 1.19
Weighted average shares outstanding
Basic (in shares)		51.9	54.4
Diluted (in shares)		56.5	57.3
Product and services sales, net
Revenues:
Total revenues		$ 149.7	$ 209.1
Contracts and grants
Revenues:
Total revenues		$ 6.4	$ 13.1

[1] (1) Exclusive of intangible asset amortization