CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities:
Net income (loss)	$ 148,648	$ 365,591
Loss (Income) from discontinued operations	5,700	33,699
(Gain) Loss on sale of discontinued operations	1,885	(200,260)
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Depreciation	210,248	214,973
Amortization (includes deferred financing costs and bond discount of $4,520 and $5,121, for the nine months ended September 30, 2011 and 2012, respectively)	31,335	25,482
Intangible impairments		42,500
Stock-based compensation expense	20,799	12,442
Provision (Benefit) for deferred income taxes	(43,254)	14,095
Loss on early extinguishment of debt, net	10,628	993
(Gain) Loss on disposal/write-down of property, plant and equipment, net	(1,515)	(2,345)
Foreign currency transactions and other, net	9,163	11,294
Changes in Assets and Liabilities (exclusive of acquisitions):
Accounts receivable	(22,379)	(18,336)
Prepaid expenses and other	(18,473)	(3,784)
Accounts payable	(12,618)	1,710
Accrued expenses and deferred revenue	(29,321)	(42,269)
Other assets and long-term liabilities	807	(4,635)
Cash Flows from Operating Activities-Continuing Operations	311,653	451,150
Cash Flows from Operating Activities-Discontinued Operations	(10,916)	(40,192)
Cash Flows from Operating Activities	300,737	410,958
Cash Flows from Investing Activities:
Capital expenditures	(165,462)	(148,099)
Cash paid for acquisitions, net of cash acquired	(106,221)	(75,172)
Investment in restricted cash	(1,502)	(4)
Additions to customer relationship and acquisition costs	(13,377)	(16,869)
Investment in joint ventures	(2,330)	(335)
Proceeds from sales of property and equipment and other, net	1,731	4,144
Cash Flows from Investing Activities-Continuing Operations	(287,161)	(236,335)
Cash Flows from Investing Activities-Discontinued Operations	(6,136)	371,103
Cash Flows from Investing Activities	(293,297)	134,768
Cash Flows from Financing Activities:
Repayment of revolving credit and term loan facilities and other debt	(2,803,476)	(1,940,741)
Proceeds from revolving credit and term loan facilities and other debt	2,637,534	2,057,835
Early retirement of senior subordinated notes	(525,834)	(231,255)
Net proceeds from sales of senior subordinated notes	985,000	394,000
Debt financing (repayment to) and equity contribution from (distribution to) noncontrolling interests, net	416	531
Stock repurchases	(38,052)	(548,455)
Parent cash dividends	(132,307)	(125,739)
Proceeds from exercise of stock options and employee stock purchase plan	22,328	81,887
Excess tax benefits from stock-based compensation	309	578
Payment of debt financing costs	(2,179)	(8,860)
Cash Flows from Financing Activities-Continuing Operations	143,739	(320,219)
Cash Flows from Financing Activities-Discontinued Operations	(39)	(415)
Cash Flows from Financing Activities	143,700	(320,634)
Effect of Exchange Rates on Cash and Cash Equivalents	3,598	(2,906)
Increase (Decrease) in Cash and Cash Equivalents	154,738	222,186
Cash and Cash Equivalents, Beginning of Period	179,845	258,693
Cash and Cash Equivalents, End of Period	334,583	480,879
Supplemental Information:
Cash Paid for Interest	175,478	162,426
Cash Paid for Income Taxes	151,906	124,680
Non-Cash Investing and Financing Activities:
Capital Leases	31,715	25,062
Accrued Capital Expenditures	18,081	20,141
Dividends Payable	46,515	46,877
Unsettled Purchases of Parent Common Stock		$ 10,852