Quarterly report pursuant to Section 13 or 15(d)

LONG-LIVED ASSETS (Definite-lived Intangibles) (Details)

v3.10.0.1
LONG-LIVED ASSETS (Definite-lived Intangibles) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Finite-lived Intangibles Asset [Roll Forward]        
Gross carrying amount     $ 1,456,040  
Accumulated amortization     (726,775)  
Net     729,265  
Acquisitions—current year     95,743  
Acquisitions—prior year     6,347  
Dispositions     (30,566)  
Foreign exchange     (20,464)  
Other (2)     (102,814)  
Net change     (51,754)  
Amortization $ (51,400) $ (53,400) (143,544) $ (143,400)
Dispositions     21,384  
Foreign exchange     11,028  
Other (2)     103,189  
Net change     (7,943)  
Gross carrying amount 1,404,286   1,404,286  
Accumulated amortization (734,718)   (734,718)  
Net 669,568   $ 669,568  
Weighted-average lives of definite-lived intangible assets     7 years  
Estimate of amortization expense for each of the five succeeding fiscal years [Abstract]        
October 1 - December 31, 2018 58,023   $ 58,023  
2019 160,194   160,194  
2020 128,449   128,449  
2021 93,013   93,013  
2022 75,482   75,482  
Revenue-generating contracts [Member]        
Finite-lived Intangibles Asset [Roll Forward]        
Gross carrying amount     789,363  
Accumulated amortization     (410,011)  
Net     379,352  
Acquisitions—current year     6,128  
Acquisitions—prior year     4,447  
Dispositions     0  
Foreign exchange     (10,165)  
Other (2)     (89,145)  
Net change     (88,735)  
Amortization     (62,974)  
Dispositions     0  
Foreign exchange     5,037  
Other (2)     89,376  
Net change     31,439  
Gross carrying amount 700,628   700,628  
Accumulated amortization (378,572)   (378,572)  
Net 322,056   $ 322,056  
Weighted-average lives of definite-lived intangible assets     7 years  
Client/vendor relationships [Member]        
Finite-lived Intangibles Asset [Roll Forward]        
Gross carrying amount     $ 341,449  
Accumulated amortization     (186,357)  
Net     155,092  
Acquisitions—current year     49,162  
Acquisitions—prior year     0  
Dispositions     (11,812)  
Foreign exchange     (5,646)  
Other (2)     (6,160)  
Net change     25,544  
Amortization     (38,938)  
Dispositions     8,146  
Foreign exchange     3,694  
Other (2)     6,178  
Net change     (20,920)  
Gross carrying amount 366,993   366,993  
Accumulated amortization (207,277)   (207,277)  
Net 159,716   $ 159,716  
Weighted-average lives of definite-lived intangible assets     7 years  
Trademarks and naming rights [Member]        
Finite-lived Intangibles Asset [Roll Forward]        
Gross carrying amount     $ 126,331  
Accumulated amortization     (32,681)  
Net     93,650  
Acquisitions—current year     0  
Acquisitions—prior year     0  
Dispositions     0  
Foreign exchange     (1,302)  
Other (2)     0  
Net change     (1,302)  
Amortization     (9,365)  
Dispositions     0  
Foreign exchange     363  
Other (2)     23  
Net change     (8,979)  
Gross carrying amount 125,029   125,029  
Accumulated amortization (41,660)   (41,660)  
Net 83,369   83,369  
Technology [Member]        
Finite-lived Intangibles Asset [Roll Forward]        
Gross carrying amount     63,666  
Accumulated amortization     (22,745)  
Net     40,921  
Acquisitions—current year     27,551  
Acquisitions—prior year     0  
Dispositions     0  
Foreign exchange     (828)  
Other (2)     (3,156)  
Net change     23,567  
Amortization     (16,886)  
Dispositions     0  
Foreign exchange     447  
Other (2)     3,178  
Net change     (13,261)  
Gross carrying amount 87,233   87,233  
Accumulated amortization (36,006)   (36,006)  
Net 51,227   $ 51,227  
Weighted-average lives of definite-lived intangible assets     3 years  
Other Intangible Assets [Member]        
Finite-lived Intangibles Asset [Roll Forward]        
Gross carrying amount     $ 135,231  
Accumulated amortization     (74,981)  
Net     60,250  
Acquisitions—current year     12,902  
Acquisitions—prior year     1,900  
Dispositions     (18,754)  
Foreign exchange     (2,523)  
Other (2)     (4,353)  
Net change     (10,828)  
Amortization     (15,381)  
Dispositions     13,238  
Foreign exchange     1,487  
Other (2)     4,434  
Net change     3,778  
Gross carrying amount 124,403   124,403  
Accumulated amortization (71,203)   (71,203)  
Net $ 53,200   $ 53,200  
Weighted-average lives of definite-lived intangible assets     12 years