Goodwill and Intangible Assets (Details 1) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Intangible Assets [Line Items]
Definite-lived intangible assets, Gross Amount	$ 3,329,840	$ 3,316,835
Definite-lived intangible assets, Accumulated Amortization	1,896,660	1,599,573
Definite-lived intangible assets, Net Book Value	1,433,180	1,717,262
Indefinite-lived intangible assets, Gross Amount	55,400	54,100
Indefinite-lived intangible assets	55,400	54,100
Gross Amount	3,385,240	3,370,935
Net Book Value	1,488,580	1,771,362
Trade Names
Intangible Assets [Line Items]
Indefinite-lived intangible assets, Gross Amount	55,400	0
Indefinite-lived intangible assets	55,400	0
In-process Research and Development
Intangible Assets [Line Items]
Indefinite-lived intangible assets, Gross Amount	0	54,100
Indefinite-lived intangible assets	0	54,100
Customer relationships
Intangible Assets [Line Items]
Definite-lived intangible assets, Gross Amount	1,759,668	1,672,470
Definite-lived intangible assets, Accumulated Amortization	908,648	780,655
Definite-lived intangible assets, Net Book Value	851,020	891,815
Developed technology, patents and licenses
Intangible Assets [Line Items]
Definite-lived intangible assets, Gross Amount	1,479,200	1,521,893
Definite-lived intangible assets, Accumulated Amortization	914,538	771,200
Definite-lived intangible assets, Net Book Value	564,662	750,693
Trademarks, trade and domain names
Intangible Assets [Line Items]
Definite-lived intangible assets, Gross Amount	75,672	87,472
Definite-lived intangible assets, Accumulated Amortization	58,631	41,885
Definite-lived intangible assets, Net Book Value	17,041	45,587
Backlog
Intangible Assets [Line Items]
Definite-lived intangible assets, Gross Amount	15,300	35,000
Definite-lived intangible assets, Accumulated Amortization	14,843	5,833
Definite-lived intangible assets, Net Book Value	$ 457	$ 29,167