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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Revenue and Contract Acquisition Costs - Schedule of Revenue from Major Customers - Concentration Risk (Details) - Sales revenue - Customer concentration risk	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Anda, Inc.
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%
Cardinal Health Inc. and affiliates
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%	11.00%	12.00%
Amgen, Inc.
Concentration Risk [Line Items]
Concentration risk, percentage			12.00%