Goodwill And Intangible Assets (Changes To Goodwill) (Detail) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Goodwill And Intangible Assets [Line Items]
Balance at beginning of period	$ 1,191,300,000us-gaap_Goodwill	$ 1,249,316,000us-gaap_Goodwill	$ 1,249,316,000us-gaap_Goodwill
Disposals	0cr_GoodwillDisposal	(800,000)cr_GoodwillDisposal
Goodwill, Purchase Accounting Adjustments		0	(13,940,000)
Currency translation	(17,268,000)	(43,258,000)
Balance at end of period	1,174,000,000us-gaap_Goodwill		1,191,300,000us-gaap_Goodwill
MEI Conlux Holdings [Member]
Goodwill And Intangible Assets [Line Items]
Proceeds Received Related To Adjustment Of Working Capital			6,100,000
Goodwill, Purchase Accounting Adjustments			$ 7,800,000

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The aggregate amount of goodwill in the period associated with divested businesses.

+ References

No definition available.

+ Details

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- Definition

Proceeds Received Related To Adjustment Of Working Capital

+ References

No definition available.

+ Details

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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

-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

+ Details

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-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 805

-SubTopic 10

-Section 25

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting 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

+ Details

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