XML 48 R38.htm IDEA: XBRL DOCUMENT v3.24.2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue (Details) $ in Millions	3 Months Ended
	Jun. 30, 2024 USD ($)
Testing services revenue
Summary Of Significant Accounting Policies [Line Items]
Revenue recognized for the tests performed in prior periods	$ 13.2

X

- Definition

Summary Of Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

Name:	cdna_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix:	cdna_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_ServiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: