Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Operations of the Company's operating segments
Net Sales to External Customers	$ 539,674	$ 535,701
Revenue Transactions With Other Operating Segments	0	0
Total net sales	539,674	535,701
Segment Profit	102,013	97,306
Goodwill	448,183	437,704	$ 446,284
Us Operations segment Member
Operations of the Company's operating segments
Net Sales to External Customers	187,935	178,907
Revenue Transactions With Other Operating Segments	19,630	18,292
Total net sales	207,565	197,199
Segment profit	29,155	24,329
Goodwill	319,715	308,863
Swiss Operations segment Member
Operations of the Company's operating segments
Net Sales to External Customers	26,965	30,888
Revenue Transactions With Other Operating Segments	120,310	118,022
Total net sales	147,275	148,910
Segment profit	35,822	35,592
Goodwill	22,241	22,507
Western European Operations [Member]
Operations of the Company's operating segments
Net Sales to External Customers	137,651	140,918
Revenue Transactions With Other Operating Segments	38,547	42,027
Total net sales	176,198	182,945
Segment profit	20,190	20,341
Goodwill	91,482	92,430
Chinese Operations [Member]
Operations of the Company's operating segments
Net Sales to External Customers	84,947	86,449
Revenue Transactions With Other Operating Segments	45,927	43,505
Total net sales	130,874	129,954
Segment profit	36,626	34,558
Goodwill	692	744
Other Operations [Member]
Operations of the Company's operating segments
Net Sales to External Customers	102,176	98,539
Revenue Transactions With Other Operating Segments	1,354	1,357
Total net sales	103,530	99,896
Segment profit	11,094	9,103
Goodwill	14,053	13,160
Intersegment Elimination [Member]
Operations of the Company's operating segments
Net Sales to External Customers	0	0
Revenue Transactions With Other Operating Segments	(225,768)	(223,203)
Total net sales	(225,768)	(223,203)
Segment profit	(30,874)	(26,617)
Goodwill	$ 0	$ 0

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Identification, description, and amounts of all significant reconciling items in the reconciliation of total profit or loss from reportable segments to the entity's consolidated income before income taxes, extraordinary items, and discontinued operations.

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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

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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)
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