Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2018

Percentage of Revenue from Significant Customers

Revenue from significant customers as a percentage of the Company’s total revenue is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
MilliporeSigma		18	%		14	%		17	%		18	%
GE Healthcare		16	%		17	%		16	%		24	%

Total Revenue

Percentage by Geographic Area or Significant Customers

The following table represents the Company’s total revenue by geographic area (based on the location of the customer):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
North America		49	%		45	%		47	%		40	%
Europe		39	%		45	%		41	%		50	%
Asia and Australia		12	%		10	%		12	%		10	%
Other		0	%		0	%		0	%		0	%
Total		100	%		100	%		100	%		100	%

Accounts Receivable

Percentage by Geographic Area or Significant Customers

Significant accounts receivable balances as a percentage of the Company’s total trade accounts receivable are as follows:

	September 30, 2018			December 31, 2017
GE Healthcare		21	%		11	%
MilliporeSigma		14	%		19	%