CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities:
Net income (loss)	$ 57,779	$ 122,927
Loss (income) from discontinued operations	0	(104)
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Depreciation	226,628	228,333
Amortization (includes amortization of deferred financing costs and discounts of $9,001 and $8,208 for the six months ended June 30, 2020 and 2019, respectively)	108,807	106,689
Intangible impairments (see Note 2.b.)	23,000	0
Revenue reduction associated with amortization of customer inducements and above- and below-market leases	5,248	7,178
Stock-based compensation expense	26,672	21,020
(Benefit) provision for deferred income taxes	(2,413)	2,753
Loss on early extinguishment of debt	17,040	0
(Gain) loss on disposal/write-down of property, plant and equipment, net	(2,330)	(7,803)
Foreign currency transactions and other, net	(30,555)	(7,505)
(Increase) decrease in assets	(10,794)	(53,038)
Increase (decrease) in liabilities	19,992	9,281
Cash Flows from Operating Activities - Continuing Operations	439,074	429,731
Cash Flows from Operating Activities - Discontinued Operations	0	0
Cash Flows from Operating Activities	439,074	429,731
Cash Flows from Investing Activities:
Capital expenditures	(200,158)	(367,131)
Cash paid for acquisitions, net of cash acquired	(118,512)	(44,651)
Acquisition of customer relationships	(2,885)	(33,375)
Customer inducements	(6,970)	(5,841)
Contract fulfillment costs and third-party commissions	(18,738)	(51,346)
Investments in joint venture	(6,850)	(19,222)
Proceeds from sales of property and equipment and other, net	9,902	46,832
Cash Flows from Investing Activities - Continuing Operations	(344,211)	(474,734)
Cash Flows from Investing Activities - Discontinued Operations	0	5,061
Cash Flows from Investing Activities	(344,211)	(469,673)
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt	(5,691,163)	(2,602,922)
Proceeds from revolving credit facility, term loan facilities and other debt	5,426,057	2,998,107
Early redemption of senior notes, including call premium	(1,111,986)	0
Net proceeds from sales of senior notes	2,376,000	0
Debt repayment and equity distribution to noncontrolling interests	(1,685)	(999)
Parent cash dividends	(359,461)	(353,357)
Net (payments) proceeds associated with employee stock-based awards	(2,030)	(1,727)
Payment of debt financing costs and other	(18,820)	0
Cash Flows from Financing Activities - Continuing Operations	616,912	39,102
Cash Flows from Financing Activities - Discontinued Operations	0	0
Cash Flows from Financing Activities	616,912	39,102
Effect of Exchange Rates on Cash and Cash Equivalents	1,850	(2,649)
Increase (decrease) in Cash and Cash Equivalents	713,625	(3,489)
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period	193,555	165,485
Cash and Cash Equivalents, including Restricted Cash, End of Period	907,180	161,996
Supplemental Information:
Cash Paid for Interest	225,676	201,602
Cash Paid for Income Taxes, Net	1,798	38,302
Non-Cash Investing and Financing Activities:
Financing Leases (see Note 2.e.)	26,546	13,662
Accrued Capital Expenditures	50,831	66,154
Fair Value of Investments Applied to Acquisitions (see Note 4)	27,276	0
Accrued Purchase Price and Other Holdbacks	0	2,394
Dividends Payable	$ 185,414	$ 181,731