XML 90 R65.htm IDEA: XBRL DOCUMENT v2.4.1.9
Cash and Due from Banks (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Cash and Cash Equivalents [Abstract]    
Reserve balance requirement $ 172htlf_ReserveRequirementFederalReserveBank $ 28,700htlf_ReserveRequirementFederalReserveBank