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Segment Information (Schedule Of Revenue From Unaffiliated Customers By Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 segment	Mar. 31, 2013
Segment Reporting Information [Line Items]
Number of reportable segments	1
Revenue from unaffiliated customers	$ 147,758	$ 102,079
United States [Member]
Segment Reporting Information [Line Items]
Revenue from unaffiliated customers	68,032	57,153
Germany [Member]
Segment Reporting Information [Line Items]
Revenue from unaffiliated customers	23,825	11,911
Other Europe [Member]
Segment Reporting Information [Line Items]
Revenue from unaffiliated customers	23,739	16,669
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue from unaffiliated customers	$ 32,162	$ 16,346

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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Period Type:	duration

X

- Details

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