Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

Three months ended June 30, 2018	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	191,511	$	25,163	$	124,336	$	119,709	$	101,757	$	562,476
Service Revenue:
Point in time	49,985		4,919		33,081		10,885		24,969		123,839
Over time	9,978		2,072		16,355		2,678		4,598		35,681
Total	$	251,474	$	32,154	$	173,772	$	133,272	$	131,324	$	721,996

Six months ended June 30, 2018	U.S. Operations		Swiss Operations		Western European Operations		Chinese Operations		Other Operations		Total
Product Revenue	$	364,012	$	50,728	$	241,268	$	224,002	$	193,412	$	1,073,422
Service Revenue:
Point in time	97,605		9,748		62,966		18,012		49,208		237,539
Over time	19,602		4,143		34,910		5,188		8,013		71,856
Total	$	481,219	$	64,619	$	339,144	$	247,202	$	250,633	$	1,382,817

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

	Three months ended June 30, 2018		Six months ended June 30, 2018
Americas	$	274,328	$	526,607
Europe	220,718		426,558
Asia / Rest of World	226,950		429,652
Total	$	721,996	$	1,382,817

The Company's global revenue mix by product category is laboratory (51% of sales), industrial (41% of sales) and retail (8% 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, 2018 is as follows:

	Three months ended June 30, 2018		Six months ended June 30, 2018
Laboratory	$	361,726	$	706,885
Industrial	305,277		567,933
Retail	54,993		107,999
Total	$	721,996	$	1,382,817

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

	Deferred Revenue and Customer Pre-payments
Beginning balances as of December 31, 2017	$	107,166
Customer pre-payments/deferred revenue	282,446
Revenue recognized	(260,280		)
Foreign currency translation	(2,497		)
Ending balance as of June 30, 2018	$	126,835