GEOGRAPHIC INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Geographic Information
Revenues	$ 2,348,433	$ 3,690,552	$ 2,555,902	$ 2,148,119	$ 1,999,995	$ 3,102,901	$ 2,280,397	$ 1,840,694	$ 10,743,006	$ 9,223,987	$ 8,441,971
Intangible assets, net	1,993,885				2,167,533				1,993,885	2,167,533	2,334,761
Goodwill	2,396,906				3,375,000				2,396,906	3,375,000	3,326,474
Other long-lived assets	421,611				331,127				421,611	331,127	255,639
United States
Geographic Information
Revenues									1,680,446	1,817,360	1,798,484
Intangible assets, net	1,918,095				2,052,351				1,918,095	2,052,351	2,183,957
Goodwill	1,801,835				2,742,535				1,801,835	2,742,535	2,712,479
Other long-lived assets	102,457				89,656				102,457	89,656	80,668
The Netherlands
Geographic Information
Revenues									7,783,376	6,205,116	5,519,207
Intangible assets, net	51,317				78,027				51,317	78,027	108,650
Goodwill	228,670				232,982				228,670	232,982	224,731
Other long-lived assets	195,669				138,329				195,669	138,329	97,056
Other
Geographic Information
Revenues									1,279,184	1,201,511	1,124,280
Intangible assets, net	24,473				37,155				24,473	37,155	42,154
Goodwill	366,401				399,483				366,401	399,483	389,264
Other long-lived assets	$ 123,485				$ 103,142				$ 123,485	$ 103,142	$ 77,915