SEGMENT DATA (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 1,329,322	$ 1,361,798
Direct operating expenses	571,262	566,664
Selling, general and administrative expenses	450,619	425,568
Corporate expenses	78,362	77,859
Depreciation and amortization	146,106	155,456
Other operating income, net	31,084	284,463
Operating income (loss)	114,057	420,714
Capital expenditures	51,027	56,779
Share-based compensation expense	3,059	3,074
Operating segments | iHM
Segment Reporting Information [Line Items]
Revenue	757,173	738,886
Direct operating expenses	243,331	224,062
Selling, general and administrative expenses	308,151	272,013
Corporate expenses	0	0
Depreciation and amortization	58,037	58,817
Other operating income, net	0	0
Operating income (loss)	147,654	183,994
Capital expenditures	13,237	8,790
Share-based compensation expense	0	0
Operating segments | Americas Outdoor
Segment Reporting Information [Line Items]
Revenue	279,420	282,528
Direct operating expenses	140,473	138,012
Selling, general and administrative expenses	56,086	55,329
Corporate expenses	0	0
Depreciation and amortization	45,295	46,116
Other operating income, net	0	0
Operating income (loss)	37,566	43,071
Capital expenditures	14,104	11,292
Share-based compensation expense	0	0
Operating segments | International Outdoor
Segment Reporting Information [Line Items]
Revenue	265,306	306,486
Direct operating expenses	187,458	203,975
Selling, general and administrative expenses	59,688	71,472
Corporate expenses	0	0
Depreciation and amortization	30,673	37,880
Other operating income, net	0	0
Operating income (loss)	(12,513)	(6,841)
Capital expenditures	21,824	34,913
Share-based compensation expense	0	0
Operating segments | Other
Segment Reporting Information [Line Items]
Revenue	29,271	34,183
Direct operating expenses	0	615
Selling, general and administrative expenses	27,641	27,039
Corporate expenses	0	0
Depreciation and amortization	3,369	3,616
Other operating income, net	0	0
Operating income (loss)	(1,739)	2,913
Capital expenditures	63	65
Share-based compensation expense	0	0
Corporate and other reconciling items
Segment Reporting Information [Line Items]
Revenue	0	0
Direct operating expenses	0	0
Selling, general and administrative expenses	0	0
Corporate expenses	79,263	77,859
Depreciation and amortization	8,732	9,027
Other operating income, net	31,084	284,463
Operating income (loss)	(56,911)	197,577
Capital expenditures	1,799	1,719
Share-based compensation expense	3,059	3,074
Eliminations
Segment Reporting Information [Line Items]
Revenue	(1,848)	(285)
Direct operating expenses	0	0
Selling, general and administrative expenses	(947)	(285)
Corporate expenses	(901)	0
Depreciation and amortization	0	0
Other operating income, net	0	0
Operating income (loss)	0	0
Capital expenditures	0	0
Share-based compensation expense	0	0
Intersegment revenues
Segment Reporting Information [Line Items]
Revenue	1,848	285
Intersegment revenues | iHM
Segment Reporting Information [Line Items]
Revenue	0	0
Intersegment revenues | Americas Outdoor
Segment Reporting Information [Line Items]
Revenue	1,848	285
Intersegment revenues | International Outdoor
Segment Reporting Information [Line Items]
Revenue	$ 0	$ 0