CONDENSED CONSOLIDATING FINANCIAL STATEMENTS: (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
Net revenue	$ 338,644	$ 258,714	$ 935,416	$ 732,162
Program and production	98,939	61,705	265,066	184,098
Selling, general and administrative	82,224	51,455	210,156	145,628
Depreciation, amortization and other operating expenses	84,633	67,156	239,410	192,255
Total operating expenses	265,796	180,316	714,632	521,981
Operating income	72,848	78,398	220,784	210,181
Interest expense	(39,867)	(35,294)	(123,029)	(92,001)
Other income (expense)	2,059	2,466	(14,741)	9,741
Total other expense	(37,808)	(32,828)	(137,770)	(82,260)
Income tax (provision) benefit	(4,489)	(19,093)	(22,992)	(42,185)
Income (loss) from discontinued operations	6,100	(125)	11,558	(178)
NET INCOME	36,651	26,352	71,580	85,558
Net income (loss) attributable to the noncontrolling interests	(309)	(107)	(415)	106
NET INCOME ATTRIBUTABLE TO SINCLAIR BROADCAST GROUP	36,342	26,245	71,165	85,664
Comprehensive income (loss)	36,613	26,409	71,464	85,804
Reportable legal entities | Sinclair Broadcast Group, Inc.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
Selling, general and administrative	901	746	2,679	2,117
Depreciation, amortization and other operating expenses	348	382	1,038	1,148
Total operating expenses	1,249	1,128	3,717	3,265
Operating income	(1,249)	(1,128)	(3,717)	(3,265)
Equity in earnings of consolidated subsidiaries	40,547	26,435	76,623	86,991
Interest expense	(203)	(341)	(903)	(999)
Other income (expense)	996	869	3,029	2,192
Total other expense	41,340	26,963	78,749	88,184
Income tax (provision) benefit	(3,749)	326	(3,867)	745
Income (loss) from discontinued operations		84
NET INCOME	36,342	26,245	71,165	85,664
NET INCOME ATTRIBUTABLE TO SINCLAIR BROADCAST GROUP	36,342	26,245	71,165	85,664
Comprehensive income (loss)	36,613	26,409	71,464	85,804
Reportable legal entities | Sinclair Television Group, Inc.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
Program and production	112	278	207	291
Selling, general and administrative	14,712	13,157	34,840	38,720
Depreciation, amortization and other operating expenses	629	618	1,558	1,282
Total operating expenses	15,453	14,053	36,605	40,293
Operating income	(15,453)	(14,053)	(36,605)	(40,293)
Equity in earnings of consolidated subsidiaries	55,128	50,171	164,370	156,249
Interest expense	(37,123)	(32,560)	(115,115)	(84,277)
Other income (expense)	6,772	43	3,141	53
Total other expense	24,777	17,654	52,396	72,025
Income tax (provision) benefit	16,667	19,872	47,645	38,414
Income (loss) from discontinued operations	6,108	(68)	11,063	(202)
NET INCOME	32,099	23,405	74,499	69,944
NET INCOME ATTRIBUTABLE TO SINCLAIR BROADCAST GROUP	32,099	23,405	74,499	69,944
Comprehensive income (loss)	32,061	23,462	74,383	70,190
Reportable legal entities | Guarantor Subsidiaries and KDSM, LLC
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
Net revenue	319,767	246,531	887,489	694,520
Program and production	99,186	63,777	269,360	190,169
Selling, general and administrative	64,300	36,720	167,654	102,075
Depreciation, amortization and other operating expenses	68,820	53,819	186,926	150,636
Total operating expenses	232,306	154,316	623,940	442,880
Operating income	87,461	92,215	263,549	251,640
Equity in earnings of consolidated subsidiaries	60
Interest expense	(1,269)	(1,291)	(3,607)	(3,695)
Other income (expense)	(6,710)	40	(19,433)	85
Total other expense	(7,919)	(1,251)	(23,040)	(3,610)
Income tax (provision) benefit	(22,236)	(39,396)	(73,267)	(88,485)
Income (loss) from discontinued operations	(8)	(141)	495	24
NET INCOME	57,298	51,427	167,737	159,569
NET INCOME ATTRIBUTABLE TO SINCLAIR BROADCAST GROUP	57,298	51,427	167,737	159,569
Comprehensive income (loss)	57,298	51,427	167,737	159,569
Reportable legal entities | Non-Guarantor Subsidiaries
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
Net revenue	32,970	14,364	90,402	44,179
Program and production	13,870	(1)	28,489	158
Selling, general and administrative	2,386	908	14,627	2,999
Depreciation, amortization and other operating expenses	19,143	12,508	50,691	39,636
Total operating expenses	35,399	13,415	93,807	42,793
Operating income	(2,429)	949	(3,405)	1,386
Interest expense	(6,538)	(6,352)	(19,027)	(18,651)
Other income (expense)	1,085	1,597	4,990	7,751
Total other expense	(5,453)	(4,755)	(14,037)	(10,900)
Income tax (provision) benefit	929	105	2,597	7,141
NET INCOME	(6,953)	(3,701)	(14,845)	(2,373)
Net income (loss) attributable to the noncontrolling interests	(309)	(107)	(415)	106
NET INCOME ATTRIBUTABLE TO SINCLAIR BROADCAST GROUP	(7,262)	(3,808)	(15,260)	(2,267)
Comprehensive income (loss)	(7,262)	(3,808)	(15,260)	(2,267)
Eliminations
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
Net revenue	(14,093)	(2,181)	(42,475)	(6,537)
Program and production	(14,229)	(2,349)	(32,990)	(6,520)
Selling, general and administrative	(75)	(76)	(9,644)	(283)
Depreciation, amortization and other operating expenses	(4,307)	(171)	(803)	(447)
Total operating expenses	(18,611)	(2,596)	(43,437)	(7,250)
Operating income	4,518	415	962	713
Equity in earnings of consolidated subsidiaries	(95,735)	(76,606)	(240,993)	(243,240)
Interest expense	5,266	5,250	15,623	15,621
Other income (expense)	(84)	(83)	(6,468)	(340)
Total other expense	(90,553)	(71,439)	(231,838)	(227,959)
Income tax (provision) benefit	(3,900)		3,900
NET INCOME	(82,135)	(71,024)	(226,976)	(227,246)
NET INCOME ATTRIBUTABLE TO SINCLAIR BROADCAST GROUP	(82,135)	(71,024)	(226,976)	(227,246)
Comprehensive income (loss)	$ (82,097)	$ (71,081)	$ (226,860)	$ (227,492)