XML 178 R74.htm IDEA: XBRL DOCUMENT v2.4.1.9
Long-Term Equity Compensation (Schedule of Options, Units, and Restricted Stock) (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Stock granted 881,338us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod    
RSUs and PSUs [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock granted 881,338us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= hnt_RestrictedStockUnitsAndPerformanceStockUnitsMember		 1,143,881us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= hnt_RestrictedStockUnitsAndPerformanceStockUnitsMember		 1,084,532us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= hnt_RestrictedStockUnitsAndPerformanceStockUnitsMember