Goodwill And Acquisition-Related Intangibles, Net (Narrative) (Details)	9 Months Ended	53 Months Ended	69 Months Ended
Dec. 31, 2012 Minimum	Dec. 31, 2012 Maximum	May 31, 2017 Weighted Average	Dec. 31, 2017 Weighted Average
Finite-Lived Intangible Assets
Finite-Lived Intangible Asset, Useful Life	2 years	14 years
Finite-Lived Intangible Assets, Remaining Amortization Period			4.4 years	5.7 years

A description of the remaining amortization period of a major finite-lived intangible asset class.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 926

-SubTopic 20

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6473108&loc=d3e54445-107959

Name:	us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration