Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 983,221	$ 946,750	$ 1,866,965	$ 1,872,699
Contract with Customer, Asset, after Allowance for Credit Loss	41,200		41,200		$ 32,600
Americas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	414,092	404,030	792,008	788,373
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	274,103	258,836	522,078	532,697
Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	295,026	283,884	552,879	551,629
Product [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	734,244	712,260	1,384,194	1,413,228
Service [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	178,088	171,039	340,879	335,869
Service [Member] \| Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 70,889	63,451	$ 141,892	123,602
Laboratory products and services [Member]
Disaggregation of Revenue [Line Items]
Percentage of Disaggregated Revenue in Relationship to Segments	56.00%		56.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 537,916	523,233	$ 1,038,140	1,048,288
Industrial products and services [Member]
Disaggregation of Revenue [Line Items]
Percentage of Disaggregated Revenue in Relationship to Segments	39.00%		39.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 394,628	374,257	$ 735,828	726,102
Retail products and services [Member]
Disaggregation of Revenue [Line Items]
Percentage of Disaggregated Revenue in Relationship to Segments	5.00%		5.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 50,677	49,260	$ 92,997	98,309
US Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	372,516	362,215	718,274	708,338
US Operations [Member] \| Product [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	271,782	264,345	518,849	515,081
US Operations [Member] \| Service [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	74,334	73,839	147,664	146,973
US Operations [Member] \| Service [Member] \| Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	26,400	24,031	51,761	46,284
Swiss Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	49,555	50,185	96,857	104,435
Swiss Operations [Member] \| Product [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	37,462	39,418	73,760	83,039
Swiss Operations [Member] \| Service [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	8,732	7,615	16,980	15,379
Swiss Operations [Member] \| Service [Member] \| Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3,361	3,152	6,117	6,017
Western European Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	211,916	202,313	402,285	417,078
Western European Operations [Member] \| Product [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	139,573	137,113	264,423	288,648
Western European Operations [Member] \| Service [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	46,663	43,218	89,139	86,039
Western European Operations [Member] \| Service [Member] \| Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	25,680	21,982	48,723	42,391
Chinese Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	162,017	164,384	303,185	307,582
Chinese Operations [Member] \| Product [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	146,635	148,436	274,832	277,447
Chinese Operations [Member] \| Service [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	10,913	11,753	19,735	21,654
Chinese Operations [Member] \| Service [Member] \| Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,469	4,195	8,618	8,481
Other Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	187,217	167,653	346,364	335,266
Other Operations [Member] \| Product [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	138,792	122,948	252,330	249,013
Other Operations [Member] \| Service [Member] \| Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	37,446	34,614	67,361	65,824
Other Operations [Member] \| Service [Member] \| Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 10,979	$ 10,091	$ 26,673	$ 20,429