Condensed Consolidating Unaudited Statements of Operations (Detail) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Schedule of Condensed Consolidating Statement of Operations [Line Items]
REVENUES	$ 445,369	$ 267,785	$ 836,353	$ 519,744
Direct operating expense	290,620	196,171	562,420	385,373
Depreciation and amortization expense	39,852	32,478	79,775	65,802
General and administrative expense	55,003	44,866	107,782	83,893
Operating (loss) income	59,894	(5,730)	86,376	(15,324)
Loss on early extinguishment of debt			46,451
Interest expense, net of amounts capitalized	10,041	10,729	20,352	20,988
Other, net	(7,319)	467	(9,704)	(776)
Income (loss) from continuing operations before tax	57,172	(16,926)	29,277	(35,536)
Income tax (expense) benefit	(20,812)	5,888	(11,629)	13,596
Income (loss) from continuing operations	36,360	(11,038)	17,648	(21,940)
Discontinued operations		8,182		10,077
Net income (loss)	36,360	(2,856)	17,648	(11,863)
Income attributable to noncontrolling interest	280	(620)	(297)	(2,047)
INCOME (LOSS) ATTRIBUTABLE TO KEY	36,080	(2,236)	17,945	(9,816)
Parent Company
Schedule of Condensed Consolidating Statement of Operations [Line Items]
General and administrative expense	354	65	667	1,293
Operating (loss) income	(354)	(65)	(667)	(1,293)
Loss on early extinguishment of debt			46,451
Interest expense, net of amounts capitalized	9,985	11,486	20,484	22,673
Other, net	(4,359)	(266)	(5,108)	(963)
Income (loss) from continuing operations before tax	(5,980)	(11,285)	(62,494)	(23,003)
Income tax (expense) benefit	(19,967)	5,186	(11,945)	12,492
Income (loss) from continuing operations	(25,947)	(6,099)	(74,439)	(10,511)
Net income (loss)	(25,947)	(6,099)	(74,439)	(10,511)
INCOME (LOSS) ATTRIBUTABLE TO KEY	(25,947)	(6,099)	(74,439)	(10,511)
Guarantor Subsidiaries
Schedule of Condensed Consolidating Statement of Operations [Line Items]
REVENUES	400,023	236,978	751,836	448,172
Direct operating expense	251,548	150,956	490,596	296,303
Depreciation and amortization expense	38,406	30,134	75,778	61,095
General and administrative expense	47,482	39,428	93,773	73,170
Operating (loss) income	62,587	16,460	91,689	17,604
Interest expense, net of amounts capitalized	(437)	(821)	(1,043)	(1,710)
Other, net	(1,920)	(130)	(4,068)	556
Income (loss) from continuing operations before tax	64,944	17,411	96,800	18,758
Income tax (expense) benefit	(128)		880
Income (loss) from continuing operations	64,816	17,411	97,680	18,758
Discontinued operations		8,182		10,077
Net income (loss)	64,816	25,593	97,680	28,835
INCOME (LOSS) ATTRIBUTABLE TO KEY	64,816	25,593	97,680	28,835
Non-Guarantor Subsidiaries
Schedule of Condensed Consolidating Statement of Operations [Line Items]
REVENUES	54,927	44,515	102,227	100,526
Direct operating expense	47,440	55,651	87,339	110,787
Depreciation and amortization expense	1,446	2,344	3,997	4,707
General and administrative expense	8,449	6,065	15,631	11,304
Operating (loss) income	(2,408)	(19,545)	(4,740)	(26,272)
Interest expense, net of amounts capitalized	492	64	911	25
Other, net	(1,180)	3,442	(737)	5,924
Income (loss) from continuing operations before tax	(1,720)	(23,051)	(4,914)	(32,221)
Income tax (expense) benefit	(717)	702	(564)	1,104
Income (loss) from continuing operations	(2,437)	(22,349)	(5,478)	(31,117)
Net income (loss)	(2,437)	(22,349)	(5,478)	(31,117)
Income attributable to noncontrolling interest	280	(620)	(297)	(2,047)
INCOME (LOSS) ATTRIBUTABLE TO KEY	(2,717)	(21,729)	(5,181)	(29,070)
Consolidation, Eliminations
Schedule of Condensed Consolidating Statement of Operations [Line Items]
REVENUES	(9,581)	(13,708)	(17,710)	(28,954)
Direct operating expense	(8,368)	(10,436)	(15,515)	(21,717)
General and administrative expense	(1,282)	(692)	(2,289)	(1,874)
Operating (loss) income	69	(2,580)	94	(5,363)
Interest expense, net of amounts capitalized	1
Other, net	140	(2,579)	209	(6,293)
Income (loss) from continuing operations before tax	(72)	(1)	(115)	930
Income (loss) from continuing operations	(72)	(1)	(115)	930
Net income (loss)	(72)	(1)	(115)	930
INCOME (LOSS) ATTRIBUTABLE TO KEY	$ (72)	$ (1)	$ (115)	$ 930