Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Goodwill		$ 1,834,399us-gaap_GoodwillGross
Accumulated impairment losses		(53,641)
Goodwill, net	1,769,199us-gaap_Goodwill	1,780,758us-gaap_Goodwill
Translation adjustments	(11,559)us-gaap_GoodwillTranslationAdjustments
Goodwill, Other Changes	0us-gaap_GoodwillOtherChanges
Goodwill, net	1,769,199us-gaap_Goodwill	1,780,758us-gaap_Goodwill
Data and Analytics [Member]
Goodwill [Roll Forward]
Goodwill		957,929
Accumulated impairment losses		(600)
Goodwill, net	945,905	957,329
Translation adjustments	(11,324)
Goodwill, Other Changes	(100)
Goodwill, net	945,905	957,329
Technology and Processing Solutions [Member]
Goodwill [Roll Forward]
Goodwill		876,470
Accumulated impairment losses		(53,041)
Goodwill, net	823,294	823,429
Translation adjustments	(235)
Goodwill, Other Changes	100
Goodwill, net	823,294	823,429
Total [Member]
Goodwill [Roll Forward]
Goodwill, net		1,780,758
Goodwill, net		$ 1,780,758

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-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

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Amount before 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

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of other (increase) decrease of an asset representing the 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

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-Topic 350

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-Section 50

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Amount of increase (decrease) from foreign currency translation adjustments 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

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