LONGLIVED ASSETS (Definitelived Intangibles) (Details) (USD $)

9 Months Ended 
Sep. 30, 2014
business

Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
$ 1,217,435,000


Accumulated amortization  Beginning of period 
(540,871,000)


Net  Beginning of period 
676,564,000


Gross carrying amount  Acquisitions  current year 
53,565,000


Gross carrying amount  Acquisitions  prior year 
5,105,000


Gross carrying amount  Dispositions 
(1,600,000)


Gross carrying amount  Foreign exchange 
(15,179,000)


Gross carrying amount  Other 
(17,712,000)

^{[1]} 
Gross carrying amount  Change 
24,179,000


Accumulated amortization  Amortization 
(107,568,000)


Accumulated amortization  Dispositions 
605,000


Accumulated amortization  Foreign exchange 
6,859,000


Accumulated amortization  Other 
19,032,000

^{[1]} 
Accumulated amortization  Change 
(81,072,000)


Gross carrying amount  End of period 
1,241,614,000


Accumulated amortization  End of period 
(621,943,000)


Net  End of period 
619,671,000


Reclassifications from indefinitelived assets 
600,000


Number of businesses acquired 
3


Weightedaverage lives of definitelived intangible assets 
7 years


Revenuegenerating contracts [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
585,094,000


Accumulated amortization  Beginning of period 
(231,053,000)


Net  Beginning of period 
354,041,000


Gross carrying amount  Acquisitions  current year 
3,194,000


Gross carrying amount  Acquisitions  prior year 
(1,851,000)


Gross carrying amount  Dispositions 
(1,600,000)


Gross carrying amount  Foreign exchange 
(9,241,000)


Gross carrying amount  Other 
(2,682,000)

^{[1]} 
Gross carrying amount  Change 
(12,180,000)


Accumulated amortization  Amortization 
(40,063,000)


Accumulated amortization  Dispositions 
605,000


Accumulated amortization  Foreign exchange 
4,192,000


Accumulated amortization  Other 
2,682,000

^{[1]} 
Accumulated amortization  Change 
(32,584,000)


Gross carrying amount  End of period 
572,914,000


Accumulated amortization  End of period 
(263,637,000)


Net  End of period 
309,277,000


Weightedaverage lives of definitelived intangible assets 
5 years


Client/vendor relationships [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
277,937,000


Accumulated amortization  Beginning of period 
(81,809,000)


Net  Beginning of period 
196,128,000


Gross carrying amount  Acquisitions  current year 
45,271,000


Gross carrying amount  Acquisitions  prior year 
5,456,000


Gross carrying amount  Dispositions 
0


Gross carrying amount  Foreign exchange 
(3,237,000)


Gross carrying amount  Other 
(800,000)

^{[1]} 
Gross carrying amount  Change 
46,690,000


Accumulated amortization  Amortization 
(32,718,000)


Accumulated amortization  Dispositions 
0


Accumulated amortization  Foreign exchange 
590,000


Accumulated amortization  Other 
800,000

^{[1]} 
Accumulated amortization  Change 
(31,328,000)


Gross carrying amount  End of period 
324,627,000


Accumulated amortization  End of period 
(113,137,000)


Net  End of period 
211,490,000


Weightedaverage lives of definitelived intangible assets 
8 years


Noncompete agreements [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
137,199,000


Accumulated amortization  Beginning of period 
(101,128,000)


Net  Beginning of period 
36,071,000


Gross carrying amount  Acquisitions  current year 
0


Gross carrying amount  Acquisitions  prior year 
1,500,000


Gross carrying amount  Dispositions 
0


Gross carrying amount  Foreign exchange 
0


Gross carrying amount  Other 
(14,800,000)

^{[1]} 
Gross carrying amount  Change 
(13,300,000)


Accumulated amortization  Amortization 
(10,263,000)


Accumulated amortization  Dispositions 
0


Accumulated amortization  Foreign exchange 
0


Accumulated amortization  Other 
15,550,000

^{[1]} 
Accumulated amortization  Change 
5,287,000


Gross carrying amount  End of period 
123,899,000


Accumulated amortization  End of period 
(95,841,000)


Net  End of period 
28,058,000


Venue management and leaseholds [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
85,642,000


Accumulated amortization  Beginning of period 
(43,687,000)


Net  Beginning of period 
41,955,000


Gross carrying amount  Acquisitions  current year 
0


Gross carrying amount  Acquisitions  prior year 
0


Gross carrying amount  Dispositions 
0


Gross carrying amount  Foreign exchange 
(833,000)


Gross carrying amount  Other 
0

^{[1]} 
Gross carrying amount  Change 
(833,000)


Accumulated amortization  Amortization 
(5,128,000)


Accumulated amortization  Dispositions 
0


Accumulated amortization  Foreign exchange 
453,000


Accumulated amortization  Other 
0

^{[1]} 
Accumulated amortization  Change 
(4,675,000)


Gross carrying amount  End of period 
84,809,000


Accumulated amortization  End of period 
(48,362,000)


Net  End of period 
36,447,000


Technology [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
100,664,000


Accumulated amortization  Beginning of period 
(73,110,000)


Net  Beginning of period 
27,554,000


Gross carrying amount  Acquisitions  current year 
4,000,000


Gross carrying amount  Acquisitions  prior year 
0


Gross carrying amount  Dispositions 
0


Gross carrying amount  Foreign exchange 
(1,220,000)


Gross carrying amount  Other 
0

^{[1]} 
Gross carrying amount  Change 
2,780,000


Accumulated amortization  Amortization 
(16,573,000)


Accumulated amortization  Dispositions 
0


Accumulated amortization  Foreign exchange 
1,152,000


Accumulated amortization  Other 
0

^{[1]} 
Accumulated amortization  Change 
(15,421,000)


Gross carrying amount  End of period 
103,444,000


Accumulated amortization  End of period 
(88,531,000)


Net  End of period 
14,913,000


Weightedaverage lives of definitelived intangible assets 
3 years


Trademarks and naming rights [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
28,524,000


Accumulated amortization  Beginning of period 
(9,092,000)


Net  Beginning of period 
19,432,000


Gross carrying amount  Acquisitions  current year 
0


Gross carrying amount  Acquisitions  prior year 
0


Gross carrying amount  Dispositions 
0


Gross carrying amount  Foreign exchange 
(645,000)


Gross carrying amount  Other 
0

^{[1]} 
Gross carrying amount  Change 
(645,000)


Accumulated amortization  Amortization 
(2,508,000)


Accumulated amortization  Dispositions 
0


Accumulated amortization  Foreign exchange 
471,000


Accumulated amortization  Other 
0

^{[1]} 
Accumulated amortization  Change 
(2,037,000)


Gross carrying amount  End of period 
27,879,000


Accumulated amortization  End of period 
(11,129,000)


Net  End of period 
16,750,000


Other [Member]



Finitelived Intangibles Asset [Roll Forward] 


Gross carrying amount  Beginning of period 
2,375,000


Accumulated amortization  Beginning of period 
(992,000)


Net  Beginning of period 
1,383,000


Gross carrying amount  Acquisitions  current year 
1,100,000


Gross carrying amount  Acquisitions  prior year 
0


Gross carrying amount  Dispositions 
0


Gross carrying amount  Foreign exchange 
(3,000)


Gross carrying amount  Other 
570,000

^{[1]} 
Gross carrying amount  Change 
1,667,000


Accumulated amortization  Amortization 
(315,000)


Accumulated amortization  Dispositions 
0


Accumulated amortization  Foreign exchange 
1,000


Accumulated amortization  Other 
0

^{[1]} 
Accumulated amortization  Change 
(314,000)


Gross carrying amount  End of period 
4,042,000


Accumulated amortization  End of period 
(1,306,000)


Net  End of period 
$ 2,736,000


Weightedaverage lives of definitelived intangible assets 
10 years



