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Summary of Significant Accounting Policies Summary of Goodwill Activity (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 USD ($)
Goodwill [Roll Forward] |
Goodwill - Beginning Balance | $ 3,389,595
Impact of Change in Foreign Exchange Rates | 15,515
Goodwill - Ending Balance | 3,405,110
Telx Acquisition |
Goodwill [Roll Forward] |
Goodwill - Beginning Balance | 330,845
Impact of Change in Foreign Exchange Rates | 0
Goodwill - Ending Balance | 330,845
European Portfolio Acquisition |
Goodwill [Roll Forward] |
Goodwill - Beginning Balance | 466,604
Impact of Change in Foreign Exchange Rates | 15,515
Goodwill - Ending Balance | 482,119
DFT Company |
Goodwill [Roll Forward] |
Goodwill - Beginning Balance | 2,592,146
Impact of Change in Foreign Exchange Rates | 0
Goodwill - Ending Balance | $ 2,592,146

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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- Details
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- Details
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