Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

A summary by the Company’s reportable segments follows for the twelve months ended December 31:

Twelve months ended December 31, 2019	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	801,181	$	110,390	$	500,978	$	495,579	$	438,717	$	2,346,845
Service Revenue:
Point in time	207,707		20,968		135,612		37,370		109,802		511,459
Over time	48,227		8,141		64,151		11,767		18,062		150,348
Total	$	1,057,115	$	139,499	$	700,741	$	544,716	$	566,581	$	3,008,652

Twelve months ended December 31, 2018	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	769,971	$	106,400	$	517,855	$	475,025	$	430,824	$	2,300,075
Service Revenue:
Point in time	196,314		19,430		134,052		38,528		100,638		488,962
Over time	41,512		8,234		66,881		11,556		18,366		146,549
Total	$	1,007,797	$	134,064	$	718,788	$	525,109	$	549,828	$	2,935,586

The Company's global revenue mix by product category is laboratory (52% of sales), industrial (41% of sales), and retail (7% 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, which 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 year ended December 31 follows:

	2019		2018
Laboratory	$	1,578,625	$	1,504,600
Industrial	1,233,970		1,211,362
Retail	196,057		219,624
Total net sales	$	3,008,652	$	2,935,586

A breakdown of net sales to external customers by geographic customer destination, net for the year ended December 31 follows:

	2019		2018
Americas	$	1,165,847	$	1,105,956
Europe	892,092		908,773
Asia/Rest of World	950,713		920,857
Total	$	3,008,652	$	2,935,586

Contract with Customer, Asset and Liability [Table Text Block]

	2019			2018
Beginning balances as of January 1	$	105,381		$	107,166
Customer pre-payments/deferred revenue	633,190			619,257
Revenue recognized	(615,957		)	(618,002		)
Foreign currency translation	(125		)	(3,040		)
Ending balance as of December 31	$	122,489		$	105,381