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Segment Reporting - Percentage of Accounts Receivable by Significant Customers (Detail) - Customer Concentration Risk - Accounts Receivable	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
GE Healthcare
Concentration Risk [Line Items]
Revenue from significant customers	12.00%	18.00%
MilliporeSigma
Concentration Risk [Line Items]
Revenue from significant customers	10.00%

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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