Goodwill and Other Intangible Assets (Schedule of Goodwill by Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 44,691us-gaap_Goodwill	$ 37,912us-gaap_Goodwill	$ 37,912us-gaap_Goodwill
Acquisitions		6,779us-gaap_GoodwillAcquiredDuringPeriod	0us-gaap_GoodwillAcquiredDuringPeriod
Purchase Accounting Adjustments	1,279
Goodwill, Ending Balance	45,970us-gaap_Goodwill	44,691us-gaap_Goodwill	37,912us-gaap_Goodwill
Americas [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	6,641	0	0
Acquisitions		6,641	0
Purchase Accounting Adjustments	1,227
Goodwill, Ending Balance	7,868	6,641	0
Asia [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	38,050	37,912	37,912
Acquisitions		138	0
Purchase Accounting Adjustments	52
Goodwill, Ending Balance	$ 38,102	$ 38,050	$ 37,912

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.

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

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-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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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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