SUMMARIZED FINANCIAL INFORMATION (Condensed Consolidating Statement of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income (loss)	$ 168,515	$ (46,662)
Depreciation and amortization	72,174	63,365
Provision for doubtful accounts	80,718	77,376
Provision for special charge		236,000
Other, net	1,136	(21,027)
Changes in operating assets and liabilties	(161,276)	(148,472)
Net cash provided by (used in) operating activities	161,267	160,580
Net cash provided by (used in) investing activities	(83,243)	(40,753)
Net cash (used in) provided by financing activities	(97,471)	425,114
Net change in cash and cash equivalents	(19,447)	544,941
Cash and cash equivalents, beginning of period	164,886	449,301
Cash and cash equivalents, end of period	145,439	994,242
Parent [Member]
Net income (loss)	159,118	(53,861)
Depreciation and amortization	9,867	11,335
Provision for doubtful accounts	1,271	1,418
Provision for special charge		236,000
Other, net	(88,603)	(107,207)
Changes in operating assets and liabilties	14,934	38,251
Net cash provided by (used in) operating activities	96,587	125,936
Net cash provided by (used in) investing activities	171,990	(12,603)
Net cash (used in) provided by financing activities	(270,754)	431,146
Net change in cash and cash equivalents	(2,177)	544,479
Cash and cash equivalents, beginning of period	71,762	392,525
Cash and cash equivalents, end of period	69,585	937,004
Subsidiary Guarantors [Member]
Net income (loss)	100,446	70,241
Depreciation and amortization	56,863	47,997
Provision for doubtful accounts	9,831	14,046
Provision for special charge
Other, net	(24,858)	8,351
Changes in operating assets and liabilties	(20,734)	(40,044)
Net cash provided by (used in) operating activities	121,548	100,591
Net cash provided by (used in) investing activities	(73,540)	(27,920)
Net cash (used in) provided by financing activities	(81,176)	(67,994)
Net change in cash and cash equivalents	(33,168)	4,677
Cash and cash equivalents, beginning of period	44,053	928
Cash and cash equivalents, end of period	10,885	5,605
Non-Guarantor Subsidiaries [Member]
Net income (loss)	16,648	15,526
Depreciation and amortization	5,444	4,033
Provision for doubtful accounts	69,616	61,912
Provision for special charge
Other, net	6,900	(739)
Changes in operating assets and liabilties	(155,476)	(146,679)
Net cash provided by (used in) operating activities	(56,868)	(65,947)
Net cash provided by (used in) investing activities	(1,414)	(2,076)
Net cash (used in) provided by financing activities	74,180	63,808
Net change in cash and cash equivalents	15,898	(4,215)
Cash and cash equivalents, beginning of period	49,071	55,848
Cash and cash equivalents, end of period	64,969	51,633
Eliminations [Member]
Net income (loss)	(107,697)	(78,568)
Depreciation and amortization
Provision for doubtful accounts
Provision for special charge
Other, net	107,697	78,568
Changes in operating assets and liabilties
Net cash provided by (used in) operating activities
Net cash provided by (used in) investing activities	(180,279)	1,846
Net cash (used in) provided by financing activities	180,279	(1,846)
Net change in cash and cash equivalents
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period