CONDENSED CONSOLIDATING FINANCIAL STATEMENTS: (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
NET CASH FLOWS (USED IN) FROM OPERATING ACTIVITIES	$ 53,370	$ 80,275
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(17,166)	(18,473)
Payments for acquisitions of television stations	(96,160)	(590,887)
Payments for acquisitions in other operating divisions	(4,650)
Purchase of alarm monitoring contracts	(6,284)	(5,627)
Proceeds from sale of broadcast assets	27,992
Decrease in restricted cash	(33,634)	58,500
Other, net	3,266	91
Net cash flows used in investing activities	(126,636)	(556,396)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Proceeds from notes payable, commercial bank financing and capital leases	1,162,344	555,134
Repayments of notes payable, commercial bank financing and capital leases	(991,724)	(33,344)
Proceeds from the sale of common stock	472,400
Dividends paid on Class A and Class B Common Stock	(26,972)	(19,204)
Payments for deferred financing costs	(16,749)	(6,702)
Other, net	(14,835)	(1,652)
Net cash flows from (used in) financing activities	601,213	494,232
NET INCREASE IN CASH AND CASH EQUIVALENTS	527,947	18,111
CASH AND CASH EQUIVALENTS, beginning of period	22,865	12,967
CASH AND CASH EQUIVALENTS, end of period	550,812	31,078
Sinclair Broadcast Group, Inc.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
NET CASH FLOWS (USED IN) FROM OPERATING ACTIVITIES	(30,295)	1,450
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES:
Other, net	711	812
Net cash flows used in investing activities	711	812
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Repayments of notes payable, commercial bank financing and capital leases	(234)	(202)
Proceeds from the sale of common stock	472,400
Dividends paid on Class A and Class B Common Stock	(27,210)	(19,461)
Increase (decrease) in intercompany payables	(416,440)	17,610
Other, net	1,068	(209)
Net cash flows from (used in) financing activities	29,584	(2,262)
Sinclair Television Group, Inc.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
NET CASH FLOWS (USED IN) FROM OPERATING ACTIVITIES	(107,075)	(50,204)
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(1,112)	(2,373)
Decrease in restricted cash	(33,634)	58,500
Other, net		(166)
Net cash flows used in investing activities	(34,746)	55,961
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Proceeds from notes payable, commercial bank financing and capital leases	1,148,500	537,275
Repayments of notes payable, commercial bank financing and capital leases	(984,755)	(20,164)
Payments for deferred financing costs		(6,702)
Increase (decrease) in intercompany payables	504,822	(512,249)
Other, net	(16,749)
Net cash flows from (used in) financing activities	651,818	(1,840)
NET INCREASE IN CASH AND CASH EQUIVALENTS	509,997	3,917
CASH AND CASH EQUIVALENTS, beginning of period	7,230	188
CASH AND CASH EQUIVALENTS, end of period	517,227	4,105
Guarantor Subsidiaries and KDSM, LLC
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
NET CASH FLOWS (USED IN) FROM OPERATING ACTIVITIES	187,733	119,977
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(14,484)	(14,463)
Payments for acquisitions of television stations	(96,160)	(590,887)
Proceeds from sale of broadcast assets	27,992
Other, net	173	38
Net cash flows used in investing activities	(82,479)	(605,312)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Repayments of notes payable, commercial bank financing and capital leases	(372)	(270)
Dividends paid on Class A and Class B Common Stock	(2)
Increase (decrease) in intercompany payables	(98,340)	486,505
Other, net	(349)	(981)
Net cash flows from (used in) financing activities	(99,063)	485,254
NET INCREASE IN CASH AND CASH EQUIVALENTS	6,191	(81)
CASH AND CASH EQUIVALENTS, beginning of period	199	313
CASH AND CASH EQUIVALENTS, end of period	6,390	232
Non-Guarantor Subsidiaries
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
NET CASH FLOWS (USED IN) FROM OPERATING ACTIVITIES	7,027	9,421
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(1,570)	(1,637)
Payments for acquisitions in other operating divisions	(4,650)
Purchase of alarm monitoring contracts	(6,284)	(5,627)
Other, net	12,245	(593)
Net cash flows used in investing activities	(259)	(7,857)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Proceeds from notes payable, commercial bank financing and capital leases	13,844	17,859
Repayments of notes payable, commercial bank financing and capital leases	(6,363)	(12,708)
Increase (decrease) in intercompany payables	(3,685)	8,022
Other, net	1,195	(462)
Net cash flows from (used in) financing activities	4,991	12,711
NET INCREASE IN CASH AND CASH EQUIVALENTS	11,759	14,275
CASH AND CASH EQUIVALENTS, beginning of period	15,436	12,466
CASH AND CASH EQUIVALENTS, end of period	27,195	26,741
Eliminations
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
NET CASH FLOWS (USED IN) FROM OPERATING ACTIVITIES	(4,020)	(369)
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES:
Other, net	(9,863)
Net cash flows used in investing activities	(9,863)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Dividends paid on Class A and Class B Common Stock	240	257
Increase (decrease) in intercompany payables	13,643	112
Net cash flows from (used in) financing activities	$ 13,883	$ 369