XML 103 R65.htm IDEA: XBRL DOCUMENT v3.20.4

CASH AND DUE FROM BANKS (Details) $ in Millions	Dec. 31, 2019 USD ($)
Cash and Cash Equivalents [Abstract]
Reserve balance requirement	$ 46.8

X

- Definition

Reserve Requirement, Federal Reserve Bank

+ References

No definition available.

+ Details

Name:	htlf_ReserveRequirementFederalReserveBank
Namespace Prefix:	htlf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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