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Segment and Geographic Information (Narrative) (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2015 Segment	Dec. 31, 2014 country Segment
Segment Reporting [Abstract]
Number of reportable segments | Segment	4	4
Number of countries in which operations is carried on		80
Maximum percentage of consolidated revenue represented by foreign countries		8.00%
Maximum percentage of consolidated revenue represented by single customer		10.00%

X

- Definition

Maximum percentage of consolidated revenue represented by foreign countries.

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No definition available.

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- Definition

Maximum percentage of consolidated revenue represented by single customer.

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No definition available.

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- Definition

Number of countries in which operations is carried on.

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No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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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.

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No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- References

No definition available.

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