Assets Held for Sale (Details) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Long Lived Assets Held-for-sale [Line Items]
Asset Impairment Charges	$ 1,884,000us-gaap_AssetImpairmentCharges	$ 0us-gaap_AssetImpairmentCharges
Assets held for sale	50,000,000		50,000,000
Cognizant Technology Solutions [Member]
Long Lived Assets Held-for-sale [Line Items]
Term of Contract	7 years
Sale price of assets per asset sale agreement	50,000,000
Property and equipment, net	50,000,000		50,000,000
Goodwill	0		0
Property, Plant and Equipment [Member]
Long Lived Assets Held-for-sale [Line Items]
Asset Impairment Charges	1,900,000		80,200,000
Property, Plant and Equipment [Member] \| Cognizant Technology Solutions [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets classified as held for sale during the year	1,900,000		130,200,000
Asset Impairment Charges	1,900,000		80,200,000
Goodwill [Member]
Long Lived Assets Held-for-sale [Line Items]
Asset Impairment Charges	0		7,000,000
Goodwill [Member] \| Cognizant Technology Solutions [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets classified as held for sale during the year	0		7,000,000
Asset Impairment Charges	0		7,000,000
Assets Held-for-sale [Member] \| Cognizant Technology Solutions [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets classified as held for sale	1,900,000		137,200,000
Asset Impairment Charges	$ 1,884,000		$ 87,200,000

Sale price of assets per asset sale agreement

No definition available.

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- Definition

Term of Contract

+ References

No definition available.

+ Details

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

+ Details

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References

+ Details

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- Definition

Amount classified as goodwill attributable to disposal group held for sale or disposed of.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount classified as long lived assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The increase (decrease) during the period in book value of long-lived assets that the reporting entity plans to sell within one year (or one business cycle).

+ References

+ Details

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- Details

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