CONDENSED CONSOLIDATING FINANCIAL STATEMENTS: (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013		Mar. 31, 2013	Dec. 31, 2012
CONDENSED CONSOLIDATING BALANCE SHEET
Consolidated total debt	$ 3,027,600,000
Cash	317,811,000		280,104,000		25,825,000	22,865,000
Accounts and other receivables	285,466,000		309,156,000
Other current assets	84,569,000		108,611,000
Assets held for sale	97,909,000
Total current assets	785,755,000		697,871,000
Property and equipment, net	574,091,000		596,071,000
Restricted cash - long term	12,426,000		11,747,000
Other long-term assets	225,878,000		232,917,000
Total other long-term assets	238,304,000		244,664,000
Goodwill and other intangible assets	2,511,963,000		2,608,866,000
Total assets	4,110,113,000	[1]	4,147,472,000	[1]
Accounts payable and accrued liabilities	233,336,000		196,174,000
Current portion of long-term debt	52,696,000		46,346,000
Current portion of affiliate long-term debt	2,466,000		2,367,000
Other current liabilities	99,048,000		98,494,000
Liabilities held for sale	10,335,000
Total current liabilities	397,881,000		343,381,000
Long-term debt	2,954,108,000		2,966,402,000
Affiliate long-term debt	18,290,000		18,925,000
Other liabilities	397,467,000		413,060,000
Total liabilities	3,767,746,000	[1]	3,741,768,000	[1]
Total Sinclair Broadcast Group shareholders' equity	332,794,000		396,370,000
Noncontrolling interests in consolidated subsidiaries	9,573,000		9,334,000
Total liabilities and equity	4,110,113,000		4,147,472,000
5.375% Senior Unsecured Notes, due 2021
CONDENSED CONSOLIDATING BALANCE SHEET
Interest rate (as a percent)	5.375%
6.125% Senior Unsecured Notes, due 2022
CONDENSED CONSOLIDATING BALANCE SHEET
Interest rate (as a percent)	6.125%
8.375% Senior Notes due 2018
CONDENSED CONSOLIDATING BALANCE SHEET
Interest rate (as a percent)	8.375%
6.375% Senior Notes, due 2021
CONDENSED CONSOLIDATING BALANCE SHEET
Interest rate (as a percent)	6.375%
Sinclair Broadcast Group, Inc.
CONDENSED CONSOLIDATING BALANCE SHEET
Amount of debt guaranteed by parent	2,880,700,000
Sinclair Television Group, Inc.
CONDENSED CONSOLIDATING BALANCE SHEET
Consolidated total debt	2,932,900,000
Reportable legal entities | Sinclair Broadcast Group, Inc.
CONDENSED CONSOLIDATING BALANCE SHEET
Accounts and other receivables	23,000		59,000
Other current assets	1,857,000		5,500,000
Total current assets	1,880,000		5,559,000
Property and equipment, net	4,750,000		5,017,000
Investment in consolidated subsidiaries	315,503,000		363,231,000
Other long-term assets	75,904,000		78,849,000
Total other long-term assets	391,407,000		442,080,000
Total assets	398,037,000		452,656,000
Accounts payable and accrued liabilities	108,000		234,000
Current portion of long-term debt	577,000		556,000
Current portion of affiliate long-term debt	1,335,000		1,294,000
Other current liabilities	17,820,000		3,529,000
Total current liabilities	19,840,000		5,613,000
Long-term debt	375,000		529,000
Affiliate long-term debt	4,618,000		4,972,000
Other liabilities	40,410,000		45,172,000
Total liabilities	65,243,000		56,286,000
Total Sinclair Broadcast Group shareholders' equity	332,794,000		396,370,000
Total liabilities and equity	398,037,000		452,656,000
Reportable legal entities | Sinclair Television Group, Inc.
CONDENSED CONSOLIDATING BALANCE SHEET
Cash	299,883,000		237,974,000		6,499,000	7,230,000
Accounts and other receivables	1,335,000		818,000
Other current assets	12,968,000		25,887,000
Total current assets	314,186,000		264,679,000
Property and equipment, net	14,175,000		13,561,000
Investment in consolidated subsidiaries	2,412,432,000		2,508,058,000
Restricted cash - long term	12,426,000		11,524,000
Other long-term assets	522,272,000		503,674,000
Total other long-term assets	2,947,130,000		3,023,256,000
Total assets	3,275,491,000		3,301,496,000
Accounts payable and accrued liabilities	76,681,000		51,781,000
Current portion of long-term debt	44,000,000		37,335,000
Other current liabilities	5,292,000
Total current liabilities	125,973,000		89,116,000
Long-term debt	2,782,567,000		2,793,334,000
Other liabilities	23,904,000		23,645,000
Total liabilities	2,932,444,000		2,906,095,000
Total Sinclair Broadcast Group shareholders' equity	343,047,000		395,401,000
Total liabilities and equity	3,275,491,000		3,301,496,000
Reportable legal entities | Guarantor Subsidiaries and KDSM, LLC
CONDENSED CONSOLIDATING BALANCE SHEET
Cash	394,000		28,594,000		656,000	199,000
Accounts and other receivables	259,573,000		281,822,000
Other current assets	63,856,000		67,279,000
Assets held for sale	97,909,000
Total current assets	421,732,000		377,695,000
Property and equipment, net	430,870,000		454,917,000
Investment in consolidated subsidiaries	4,179,000		4,179,000
Restricted cash - long term			223,000
Other long-term assets	53,638,000		62,435,000
Total other long-term assets	57,817,000		66,837,000
Goodwill and other intangible assets	2,388,734,000		2,486,794,000
Total assets	3,299,153,000		3,386,243,000
Accounts payable and accrued liabilities	140,017,000		126,245,000
Current portion of long-term debt	1,110,000		1,007,000
Current portion of affiliate long-term debt	1,131,000		1,073,000
Other current liabilities	72,020,000		87,612,000
Liabilities held for sale	10,335,000
Total current liabilities	224,613,000		215,937,000
Long-term debt	29,733,000		35,709,000
Affiliate long-term debt	13,674,000		13,984,000
Other liabilities	616,894,000		610,491,000
Total liabilities	884,914,000		876,121,000
Total Sinclair Broadcast Group shareholders' equity	2,414,240,000		2,510,122,000
Total liabilities and equity	3,299,154,000		3,386,243,000
Reportable legal entities | Non-Guarantor Subsidiaries
CONDENSED CONSOLIDATING BALANCE SHEET
Cash	17,534,000		13,536,000		18,670,000	15,436,000
Accounts and other receivables	25,397,000		27,479,000
Other current assets	16,397,000		16,391,000
Total current assets	59,328,000		57,406,000
Property and equipment, net	131,757,000		130,019,000
Other long-term assets	132,275,000		132,840,000
Total other long-term assets	132,275,000		132,840,000
Goodwill and other intangible assets	217,848,000		214,325,000
Total assets	541,208,000		534,590,000
Accounts payable and accrued liabilities	17,849,000		17,914,000
Current portion of long-term debt	6,853,000		7,448,000
Current portion of affiliate long-term debt	824,000		1,003,000
Other current liabilities	10,075,000		9,645,000
Total current liabilities	35,601,000		36,010,000
Long-term debt	139,341,000		136,830,000
Affiliate long-term debt	299,929,000		294,919,000
Other liabilities	146,034,000		145,828,000
Total liabilities	620,905,000		613,587,000
Total Sinclair Broadcast Group shareholders' equity	(89,271,000)		(88,331,000)
Noncontrolling interests in consolidated subsidiaries	9,573,000		9,334,000
Total liabilities and equity	541,207,000		534,590,000
Eliminations
CONDENSED CONSOLIDATING BALANCE SHEET
Accounts and other receivables	(862,000)		(1,022,000)
Other current assets	(10,509,000)		(6,446,000)
Total current assets	(11,371,000)		(7,468,000)
Property and equipment, net	(7,461,000)		(7,443,000)
Investment in consolidated subsidiaries	(2,732,114,000)		(2,875,468,000)
Other long-term assets	(558,211,000)		(544,881,000)
Total other long-term assets	(3,290,325,000)		(3,420,349,000)
Goodwill and other intangible assets	(94,619,000)		(92,253,000)
Total assets	(3,403,776,000)		(3,527,513,000)
Accounts payable and accrued liabilities	(1,319,000)
Current portion of long-term debt	156,000
Current portion of affiliate long-term debt	(824,000)		(1,003,000)
Other current liabilities	(6,159,000)		(2,292,000)
Total current liabilities	(8,146,000)		(3,295,000)
Long-term debt	2,092,000
Affiliate long-term debt	(299,931,000)		(294,950,000)
Other liabilities	(429,775,000)		(412,076,000)
Total liabilities	(735,760,000)		(710,321,000)
Total Sinclair Broadcast Group shareholders' equity	(2,668,016,000)		(2,817,192,000)
Total liabilities and equity	$ (3,403,776,000)		$ (3,527,513,000)

[1] Our consolidated total assets as of March 31, 2014 and December 31, 2013include total assets of variable interest entities (VIEs) of $192.4million and $194.1 million, respectively, which can only be used to settle the obligations of the VIEs. Our consolidated total liabilities as of March 31, 2014 and December 31, 2013 include total liabilities of the VIEs of $26.0million and $31.6million, respectively, for which the creditors of the VIEs have no recourse to us. See Note 1. Summary of Significant Accounting Policies.