SEGMENT DATA (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Revenue	$ 1,570,418	$ 1,579,514	$ 4,552,455	$ 4,523,937
Direct operating expenses	595,576	627,150	1,781,193	1,820,005
Selling, general and administrative expenses	421,700	429,426	1,281,849	1,270,869
Corporate expenses	86,779	74,775	252,308	232,492
Depreciation and amortization	158,453	166,320	476,053	505,167
Impairment charges	8,000	21,631	8,000	21,631
Other operating income (expense), net	(505)	6,914	219,768	98,694
Operating income (loss)	299,405	267,126	972,820	772,467
Capital expenditures	77,333	67,615	201,038	192,492
Share-based compensation expense	3,431	2,991	10,310	7,918
Other
Segment Reporting Information [Line Items]
Revenue	41,414	36,719	114,663	106,941
Direct operating expenses	(178)	586	1,255	2,473
Selling, general and administrative expenses	27,466	25,149	82,394	81,798
Corporate expenses	0	0	0	0
Depreciation and amortization	4,483	4,370	12,809	16,842
Impairment charges	0	0	0	0
Other operating income (expense), net	0	0	0	0
Operating income (loss)	9,643	6,614	18,205	5,828
Capital expenditures	582	551	1,758	1,346
Share-based compensation expense	0	0	0	0
Operating segments \| iHM
Segment Reporting Information [Line Items]
Revenue	857,099	846,865	2,463,899	2,385,367
Direct operating expenses	229,668	253,848	704,097	709,503
Selling, general and administrative expenses	268,612	272,065	812,344	799,370
Corporate expenses	0	0	0	0
Depreciation and amortization	60,691	59,402	182,506	179,703
Impairment charges	0	0	0	0
Other operating income (expense), net	0	0	0	0
Operating income (loss)	298,128	261,550	764,952	696,791
Capital expenditures	23,238	14,426	46,303	44,106
Share-based compensation expense	0	0	0	0
Operating segments \| Americas Outdoor
Segment Reporting Information [Line Items]
Revenue	322,997	347,336	931,058	984,485
Direct operating expenses	142,989	149,072	421,039	445,018
Selling, general and administrative expenses	54,500	59,539	167,660	172,522
Corporate expenses	0	0	0	0
Depreciation and amortization	47,242	50,121	140,883	151,574
Impairment charges	0	0	0	0
Other operating income (expense), net	0	0	0	0
Operating income (loss)	78,266	88,604	201,476	215,371
Capital expenditures	19,114	18,557	47,808	50,916
Share-based compensation expense	0	0	0	0
Operating segments \| International Outdoor
Segment Reporting Information [Line Items]
Revenue	350,060	348,941	1,044,866	1,049,654
Direct operating expenses	223,097	223,644	654,802	663,011
Selling, general and administrative expenses	71,664	73,020	220,872	219,689
Corporate expenses	0	0	0	0
Depreciation and amortization	37,018	41,564	113,075	124,961
Impairment charges	0	0	0	0
Other operating income (expense), net	0	0	0	0
Operating income (loss)	18,281	10,713	56,117	41,993
Capital expenditures	30,803	28,665	97,487	85,522
Share-based compensation expense	0	0	0	0
Corporate and other reconciling items
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Direct operating expenses	0	0	0	0
Selling, general and administrative expenses	0	0	0	0
Corporate expenses	87,389	74,775	252,918	232,492
Depreciation and amortization	9,019	10,863	26,780	32,087
Impairment charges	8,000	21,631	8,000	21,631
Other operating income (expense), net	(505)	6,914	219,768	98,694
Operating income (loss)	(104,913)	(100,355)	(67,930)	(187,516)
Capital expenditures	3,596	5,416	7,682	10,602
Share-based compensation expense	3,431	2,991	10,310	7,918
Eliminations
Segment Reporting Information [Line Items]
Revenue	(1,152)	(347)	(2,031)	(2,510)
Direct operating expenses	0	0	0	0
Selling, general and administrative expenses	(542)	(347)	(1,421)	(2,510)
Corporate expenses	(610)	0	(610)	0
Depreciation and amortization	0	0	0	0
Impairment charges	0	0	0	0
Other operating income (expense), net	0	0	0	0
Operating income (loss)	0	0	0	0
Capital expenditures	0	0	0	0
Share-based compensation expense	0	0	0	0
Intersegment revenues
Segment Reporting Information [Line Items]
Revenue	1,152	347	2,031	2,510
Intersegment revenues \| iHM
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Intersegment revenues \| Americas Outdoor
Segment Reporting Information [Line Items]
Revenue	1,152	347	2,031	2,510
Intersegment revenues \| International Outdoor
Segment Reporting Information [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 0

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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