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Related Party Transactions - Additional Information (Detail) (USD $)
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12 Months Ended | 0 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Nov. 17, 2011
Terminated Subordinated Debt due to Related Parties
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Dec. 31, 2013
Terminated Subordinated Debt due to Related Parties
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Dec. 31, 2012
Terminated Subordinated Debt due to Related Parties
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Dec. 31, 2011
Terminated Subordinated Debt due to Related Parties
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Nov. 17, 2011
Edward G. Atsinger III, Chief Executive Officer and Director
Terminated Subordinated Debt due to Related Parties
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Dec. 31, 2013
Edward G. Atsinger III, Chief Executive Officer and Director
Aircraft
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Dec. 31, 2012
Edward G. Atsinger III, Chief Executive Officer and Director
Aircraft
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Dec. 31, 2011
Edward G. Atsinger III, Chief Executive Officer and Director
Aircraft
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Dec. 31, 2013
Edward G. Atsinger III, Chief Executive Officer and Director
Trust
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Dec. 31, 2012
Edward G. Atsinger III, Chief Executive Officer and Director
Trust
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Dec. 31, 2011
Edward G. Atsinger III, Chief Executive Officer and Director
Trust
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Dec. 31, 2013
Know the Truth
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Dec. 31, 2012
Know the Truth
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Dec. 31, 2011
Know the Truth
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Dec. 31, 2013
Chairman and Chief Executive Officer
Land and Building
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Dec. 31, 2012
Chairman and Chief Executive Officer
Land and Building
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Dec. 31, 2011
Chairman and Chief Executive Officer
Land and Building
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Nov. 17, 2011
Stuart W. Epperson, Board of Directors Chairman
Terminated Subordinated Debt due to Related Parties
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Sep. 12, 2012
Roland S. Hinz, a Salem board member
Terminated Subordinated Debt due to Related Parties
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May 21, 2012
Roland S. Hinz, a Salem board member
Terminated Subordinated Debt due to Related Parties
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Dec. 31, 2013
Truth For Life
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Dec. 31, 2012
Truth For Life
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Dec. 31, 2011
Truth For Life
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| Related Party Transaction [Line Items] | ||||||||||||||||||||||||||
| Minimum ownership percentage | 5.00% | |||||||||||||||||||||||||
| Minimum ownership interest | 10.00% | |||||||||||||||||||||||||
| Rental Expenses | $ 16,900,000 | $ 15,700,000 | $ 14,900,000 | $ 239,000 | $ 386,000 | $ 402,000 | $ 170,000 | $ 165,000 | $ 160,000 | $ 1,200,000 | $ 1,200,000 | $ 1,100,000 | ||||||||||||||
| Credit facility, borrowing capacity | 6,000,000 | 3,000,000 | 12,000,000 | 6,000,000 | ||||||||||||||||||||||
| Line of Credit Facility, Amount Outstanding | 0 | 15,000,000 | 9,000,000 | |||||||||||||||||||||||
| Debt, interest rate terms | Outstanding amounts under each subordinated line of credit bore interest at a rate equal to the lesser of (1) 5% per annum and (2) the maximum rate permitted for subordinated debt under the Revolver referred to above plus 2% per annum. | Outstanding amounts under each subordinated line of credit bore interest at a rate equal to the lesser of (1) 5% per annum and (2) the maximum rate permitted for subordinated debt under the Terminated Revolver referred to above plus 2% per annum. Interest was payable at the time of any repayment of principal. In addition, outstanding amounts under each subordinated line of credit were required to be repaid within three (3) months from the time that such amounts are borrowed, with the exception of the subordinated line of credit with Mr. Hinz, which was to be repaid within six (6) months from the time that such amounts were borrowed. | ||||||||||||||||||||||||
| Amount received from non-profit organization for airtime | 400,000 | 400,000 | 300,000 | 2,100,000 | 2,100,000 | 1,900,000 | ||||||||||||||||||||
| Life insurance premium | 386,000 | 193,000 | 990,000 | |||||||||||||||||||||||
| Net assets | $ 1,600,000 | $ 1,300,000 | $ 1,100,000 | |||||||||||||||||||||||