v3.26.1
Business Segment Information - Information by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Business segment information          
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]     srt:ChiefExecutiveOfficerMember    
Total segment revenue $ 838.5 $ 797.4 $ 1,661.9 $ 1,598.8  
Operating expenses:          
Selling, general and administrative 238.9 231.4 481.0 456.8  
Research and development 94.3 100.2 195.6 197.3  
Operating (loss) Income (65.3) 11.9 (55.1) 43.7  
Interest and other income (expense), net 24.6 (11.4) 36.3 (18.1)  
(Loss) income before income taxes, equity in income of unconsolidated investees, net of tax, and noncontrolling interests in consolidated subsidiaries (40.7) 0.5 (18.8) 25.6  
Assets 6,052.9   6,052.9   $ 6,241.4
Capital Expenditures 20.3 30.3 38.2 56.3  
Depreciation and Amortization 58.0 56.1 116.3 106.5  
Operating segments          
Business segment information          
Total segment revenue 841.5 799.5 1,668.1 1,603.3  
Operating expenses:          
Cost of revenue 403.7 411.6 818.4 804.4  
Selling, general and administrative 192.1 196.2 389.6 382.8  
Research and development 94.3 98.7 195.6 194.5  
Operating (loss) Income 151.4 93.0 264.5 221.6  
Intersegment revenue          
Business segment information          
Total segment revenue 3.0 2.1 6.2 4.5  
Corporate, eliminations and other          
Operating expenses:          
Operating (loss) Income [1] 32.8 21.1 61.8 47.9  
Assets [2] (42.8)   (42.8)   (45.2)
BSI BioSpin          
Business segment information          
Total segment revenue 195.7 195.3 393.2 403.1  
Operating expenses:          
Capital Expenditures 0.0 2.3 2.4 5.5  
Depreciation and Amortization 9.4 11.2 21.1 21.6  
BSI BioSpin | Operating segments          
Business segment information          
Total segment revenue 195.7 195.3 393.2 403.1  
Operating expenses:          
Cost of revenue 94.1 108.1 196.8 217.8  
Selling, general and administrative 38.4 40.9 80.2 79.9  
Research and development 21.5 23.2 45.8 45.2  
Operating (loss) Income 41.7 23.1 70.4 60.2  
BSI BioSpin | Intersegment revenue          
Business segment information          
Total segment revenue 0.0 0.0 0.0 0.0  
BSI CALID          
Business segment information          
Total segment revenue 310.3 285.8 626.6 565.9  
Operating expenses:          
Capital Expenditures 6.5 5.5 13.2 13.9  
Depreciation and Amortization 27.4 23.4 52.0 43.2  
BSI CALID | Operating segments          
Business segment information          
Total segment revenue 310.3 285.8 626.6 565.9  
Operating expenses:          
Cost of revenue 126.1 125.6 265.4 243.4  
Selling, general and administrative 79.3 76.9 160.6 149.8  
Research and development 32.6 30.0 65.8 58.0  
Operating (loss) Income 72.3 53.3 134.8 114.7  
BSI CALID | Intersegment revenue          
Business segment information          
Total segment revenue 0.0 0.0 0.0 0.0  
BSI Nano          
Business segment information          
Total segment revenue 261.3 252.1 507.3 508.7  
Operating expenses:          
Capital Expenditures 7.5 13.2 12.4 18.1  
Depreciation and Amortization 15.9 17.1 32.9 33.8  
BSI Nano | Operating segments          
Business segment information          
Total segment revenue 261.3 252.1 507.3 508.7  
Operating expenses:          
Cost of revenue 123.7 125.6 243.9 244.4  
Selling, general and administrative 68.6 72.7 137.1 142.1  
Research and development 39.2 44.4 82.1 89.6  
Operating (loss) Income 29.8 9.4 44.2 32.6  
BSI Nano | Intersegment revenue          
Business segment information          
Total segment revenue 0.0 0.0 0.0 0.0  
BEST          
Business segment information          
Total segment revenue 71.2 64.2 134.8 121.1  
Operating expenses:          
Capital Expenditures 2.8 2.4 4.4 7.2  
Depreciation and Amortization 2.6 2.4 5.2 4.5  
BEST | Operating segments          
Business segment information          
Total segment revenue 74.2 66.3 141.0 125.6  
Operating expenses:          
Cost of revenue 59.8 52.3 112.3 98.7  
Selling, general and administrative 5.8 5.7 11.7 11.0  
Research and development 1.0 1.1 1.9 1.7  
Operating (loss) Income 7.6 7.2 15.1 14.2  
Assets 193.7   193.7   192.4
BEST | Intersegment revenue          
Business segment information          
Total segment revenue 3.0 2.1 6.2 4.5  
BSI BioSpin, BSI CALID, BSI NANO & Corporate | Operating segments          
Operating expenses:          
Assets 5,902.0   5,902.0   $ 6,094.2
Corporate          
Operating expenses:          
Capital Expenditures 3.5 6.9 5.8 11.6  
Depreciation and Amortization 2.7 2.0 5.1 3.4  
Adjustments and Reconciling Items          
Operating expenses:          
Operating (loss) Income [3] $ 183.9 $ 60.0 $ 257.8 $ 130.0  
[1] Represents corporate costs and intersegment eliminations not allocated to the reportable segments. Unallocated costs include general and administrative expenses not directly incurred by the segments such as professional fees incurred for the quarterly reviews and annual audit of the consolidated financial statements, personnel costs of corporate accounting, finance, legal, and IT resources, and other expense items.
[2] Assets not allocated to the reportable segments and eliminations of intercompany transactions.
[3] Adjustments and reconciling items consist of costs related to restructuring actions; acquisition and related integration expenses; amortization of acquired intangible assets; costs associated with the Company's global information technology (“IT”) transition initiatives; goodwill, intangible assets, other long-lived asset impairment charges; and other costs.