Shareholders' Equity - Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	$ 18.4	$ 15.7	$ 14.5
Additional information
Expected pre-tax stock-based compensation expense	$ 3.5
Weighted average remaining service period	2 years 6 months
2016 Incentive Compensation Plan
Additional information
Expected pre-tax stock-based compensation expense	$ 37.5
Weighted average remaining service period	2 years 8 months 12 days
Cost of revenues
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	$ 1.4	1.1	2.2
Selling, general and administrative
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	15.1	13.3	10.1
Research and development
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	1.9	1.3	2.2
Mestrelab and PreOmics
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	5.6	12.0	2.7
Employee Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	1.6	1.5	1.3
Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	16.0	14.1	13.2
Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation	$ 0.8	$ 0.1	$ 0.0