NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (Details)	Dec. 31, 2014 item
NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:
Number of Television Stations Owned	164sbgi_NumberOfTelevisionStationsOwned
Number of markets	79sbgi_NumberOfMarkets
Number of channels	373sbgi_NumberOfChannels

Represent the number of markets in which broadcasting and media stations are operated.

No definition available.