Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

Three months ended March 31, 2023	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	246,529	$	36,461	$	140,707	$	170,430	$	121,874	$	716,001
Service Revenue:
Point in time	70,626		7,461		41,165		11,347		30,045		160,644
Over time	20,247		2,447		17,552		3,990		7,857		52,093
Total	$	337,402	$	46,369	$	199,424	$	185,767	$	159,776	$	928,738

Three months ended March 31, 2022	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	248,807	$	33,910	$	138,009	$	167,989	$	117,900	$	706,615
Service Revenue:
Point in time	60,154		7,168		36,223		10,327		28,600		142,472
Over time	16,860		2,192		18,654		4,390		6,608		48,704
Total	$	325,821	$	43,270	$	192,886	$	182,706	$	153,108	$	897,791

    A breakdown of net sales to external customers by geographic customer destination for the three months ended March 31 follows:

	2023		2022
Americas	$	372,073	$	352,689
Europe	253,974		249,784
Asia / Rest of World	302,691		295,318
Total	$	928,738	$	897,791

The Company's global revenue mix by product category is laboratory (56% of sales), industrial (38% of sales) and retail (6% of sales). The Company's product revenue by reportable segment is proportionately similar to the Company's global mix except the Company's Swiss Operations is largely comprised of laboratory products, while the Company's Chinese Operations has a slightly higher percentage of industrial products. A breakdown of the Company’s sales by product category for the three months ended March 31 follows:

	2023		2022
Laboratory	$	520,031	$	513,550
Industrial	355,181		343,738
Retail	53,526		40,503
Total	$	928,738	$	897,791