Quarterly report pursuant to Section 13 or 15(d)

EQUITY TRANSACTIONS (Narrative) (Details)

v2.4.1.9
EQUITY TRANSACTIONS (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2015
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]      
Stock based compensation expenses $ 0.3us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue $ 0.6us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue  
Scenario, Forecast [Member]      
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]      
Class A and Class B common stock, expected annual dividend payment     $ 6.6salm_ExpectedDividendPayments
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember