SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenues from external customers	$ 365,798		$ 389,673		$ 1,072,534		$ 1,229,512
Intersegment revenues	0		0		0		0
Depreciation and amortization	50,924		56,962		154,203		169,363
Impairment expense	60,792		0		89,479		0
Other operating expenses	337,336		320,962		969,268		1,028,227
Operating loss	(83,254)		11,749		(140,416)		31,922
Interest expense, net of amounts capitalized	13,417		13,814		40,397		41,602
Income (loss) before income taxes	(97,019)		(1,980)		(178,359)		(8,802)
Long-lived assets(1)	1,924,281	[1]	2,082,630	[1]	1,924,281	[1]	2,082,630	[1]
Total assets	2,406,646		2,684,047		2,406,646		2,684,047		2,587,470
Capital expenditures, excluding acquisitions	38,691		38,444		108,120		111,021
U.S.
Segment Reporting Information [Line Items]
Revenues from external customers	339,848		345,115		988,407		1,052,885
Intersegment revenues	(396)		272		38		8,734
Depreciation and amortization	40,357		45,551		122,001		137,825
Impairment expense	60,792				60,792
Other operating expenses	266,103		247,567		773,221		769,695
Operating loss	(27,404)		51,997		32,393		145,365
Interest expense, net of amounts capitalized	0		0		(1)		1
Income (loss) before income taxes	(27,047)		52,042		34,667		145,461
Long-lived assets(1)	1,551,120	[1]	1,646,396	[1]	1,551,120	[1]	1,646,396	[1]
Total assets	2,924,255		2,740,094		2,924,255		2,740,094
Capital expenditures, excluding acquisitions	36,156		29,443		96,462		79,412
International
Segment Reporting Information [Line Items]
Revenues from external customers	25,950		44,558		84,127		176,627
Intersegment revenues	2,343		1,788		7,111		5,983
Depreciation and amortization	7,689		8,440		23,388		22,403
Impairment expense	0				28,687
Other operating expenses	27,517		43,430		88,645		160,668
Operating loss	(9,256)		(7,312)		(56,593)		(6,444)
Interest expense, net of amounts capitalized	1		0		29		64
Income (loss) before income taxes	(10,274)		(7,336)		(57,511)		(6,042)
Long-lived assets(1)	260,706	[1]	327,328	[1]	260,706	[1]	327,328	[1]
Total assets	415,678		525,472		415,678		525,472
Capital expenditures, excluding acquisitions	831		2,290		4,501		15,453
Functional Support
Segment Reporting Information [Line Items]
Revenues from external customers	0	[2]	0	[2]	0	[2]	0	[2]
Intersegment revenues	361	[2]	1,439	[2]	1,446	[2]	1,586	[2]
Depreciation and amortization	2,878	[2]	2,971	[2]	8,814	[2]	9,135	[2]
Impairment expense	0	[2]			0	[2]
Other operating expenses	43,716	[2]	29,965	[2]	107,402	[2]	97,864	[2]
Operating loss	(46,594)	[2]	(32,936)	[2]	(116,216)	[2]	(106,999)	[2]
Interest expense, net of amounts capitalized	13,416	[2]	13,814	[2]	40,369	[2]	41,537	[2]
Income (loss) before income taxes	(59,698)	[2]	(46,686)	[2]	(155,515)	[2]	(148,221)	[2]
Long-lived assets(1)	274,946	[1],[2]	302,825	[1],[2]	274,946	[1],[2]	302,825	[1],[2]
Total assets	(430,217)	[2]	(72,943)	[2]	(430,217)	[2]	(72,943)	[2]
Capital expenditures, excluding acquisitions	1,704	[2]	6,711	[2]	7,157	[2]	16,156	[2]
Reconciling Eliminations
Segment Reporting Information [Line Items]
Revenues from external customers	0		0		0		0
Intersegment revenues	(2,308)		(3,499)		(8,595)		(16,303)
Depreciation and amortization	0		0		0		0
Impairment expense	0				0
Other operating expenses	0		0		0		0
Operating loss	0		0		0		0
Interest expense, net of amounts capitalized	0		0		0		0
Income (loss) before income taxes	0		0		0		0
Long-lived assets(1)	(162,491)	[1]	(193,919)	[1]	(162,491)	[1]	(193,919)	[1]
Total assets	(503,070)		(508,576)		(503,070)		(508,576)
Capital expenditures, excluding acquisitions	$ 0		$ 0		$ 0		$ 0

[1] Long lived assets include fixed assets, goodwill, intangibles and other assets

[2] Functional Support is geographically located in the United States.