XML 44 R62.htm IDEA: XBRL DOCUMENT v2.4.1.9
STOCK-BASED COMPENSATION PLANS: (Details 4) (401 (k) Plan, USD $)
In Millions, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
401 (k) Plan
      
Maximum match as a percentage of elective deferrals by eligible employees 50.00%sbgi_DefinedContributionPlanMaximumEmployerContributionAsPercentageOfEmployeesDeferrals
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember		    
Maximum match as a percentage of employee's total cash compensation 4.00%sbgi_DefinedContributionPlanMaximumAnnualContributionAsAPercentageOfEmployeeTotalCashCompensation
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember		    
Compensation expense relating to match $ 5.2us-gaap_DefinedContributionPlanCostRecognized
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember		 $ 3.1us-gaap_DefinedContributionPlanCostRecognized
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember		 $ 1.6us-gaap_DefinedContributionPlanCostRecognized
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember
Number of shares reserved for matches 3,000,000sbgi_DefinedContributionPlanNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember		    
Number of shares available for future grants 775,696sbgi_DefinedContributionPlanNumberOfSharesAvailableForFutureGrants
/ us-gaap_AwardTypeAxis
= sbgi_FourZeroOneKPlanMember