XML 42 R29.htm IDEA: XBRL DOCUMENT v3.20.2

SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING STANDARDS - Consumer Incentives (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accounting Policies [Abstract]
Consumer Incentives, Expense	$ 16.0	$ 26.3	$ 49.6	$ 73.9

X

- Definition

Consumer Incentives, Expense

+ References

No definition available.

+ Details

Name:	cdlx_ConsumerIncentivesExpense
Namespace Prefix:	cdlx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration