Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

For the three months ended June 30, 2021	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	252,668	$	32,018	$	145,687	$	188,803	$	117,310	$	736,486
Service Revenue:
Point in time	54,493		6,534		37,089		12,633		29,711		140,460
Over time	16,149		2,284		18,946		4,085		5,941		47,405
Total	$	323,310	$	40,836	$	201,722	$	205,521	$	152,962	$	924,351

For the three months ended June 30, 2020	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	188,363	$	22,012	$	104,458	$	128,151	$	94,129	$	537,113
Service Revenue:
Point in time	46,342		4,726		27,945		9,784		23,490		112,287
Over time	14,635		2,210		16,648		2,972		4,808		41,273
Total	$	249,340	$	28,948	$	149,051	$	140,907	$	122,427	$	690,673

For the six months ended June 30, 2021	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	457,859	$	62,185	$	282,586	$	332,128	$	228,643	$	1,363,401
Service Revenue:
Point in time	106,084		13,425		72,719		21,975		57,588		271,791
Over time	31,326		4,507		38,767		7,492		11,457		93,549
Total	$	595,269	$	80,117	$	394,072	$	361,595	$	297,688	$	1,728,741

For the six months ended June 30, 2020	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	365,799	$	46,288	$	210,335	$	218,472	$	185,553	$	1,026,447
Service Revenue:
Point in time	96,577		10,282		59,336		16,890		49,166		232,251
Over time	28,374		4,274		32,705		6,144		9,640		81,137
Total	$	490,750	$	60,844	$	302,376	$	241,506	$	244,359	$	1,339,835

A summary of revenue by major geographic destination for the three and six months ended June 30 follows:

	Three Months Ended				Six Months Ended
	2021		2020		2021		2020
Americas	$	353,415	$	270,291	$	656,754	$	535,124
Europe	260,190		194,165		501,566		388,992
Asia / Rest of World	310,746		226,217		570,421		415,719
Total	$	924,351	$	690,673	$	1,728,741	$	1,339,835

The Company's global revenue mix by product category is comprised of laboratory (55% of sales), industrial (39% 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 summary of the Company’s revenue by product category for the three and six months ended June 30 is as follows:

	Three Months Ended				Six Months Ended
	2021		2020		2021		2020
Laboratory	$	506,106	$	359,471	$	950,732	$	716,562
Industrial	368,013		288,824		678,791		541,179
Retail	50,232		42,378		99,218		82,094
Total	$	924,351	$	690,673	$	1,728,741	$	1,339,835

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

	2021		2020
Beginning balances as of January 1	$	149,106	$	122,489
Customer pre-payments/deferred revenue	323,654		278,015
Revenue recognized	(278,817)		(251,462)
Foreign currency translation	(1,744)		1,700
Ending balance as of June 30	$	192,199	$	150,742