Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Operations of the Company's operating segments
Net Sales to External Customers	$ 550,621	$ 524,355
Revenue Transactions With Other Operating Segments	0	0
Total net sales	550,621	524,355
Segment Profit	90,953	85,433
Goodwill	456,942	445,709	455,842
Us Operations segment Member
Operations of the Company's operating segments
Net Sales to External Customers	163,994	158,389
Revenue Transactions With Other Operating Segments	20,775	18,377
Total net sales	184,769	176,766
Segment profit	23,695	24,657
Goodwill	307,933	307,933
Swiss Operations segment Member
Operations of the Company's operating segments
Net Sales to External Customers	32,056	30,697
Revenue Transactions With Other Operating Segments	108,225	97,123
Total net sales	140,281	127,820
Segment profit	36,166	34,201
Goodwill	24,420	22,694
Western European Operations [Member]
Operations of the Company's operating segments
Net Sales to External Customers	161,517	146,168
Revenue Transactions With Other Operating Segments	29,438	28,112
Total net sales	190,955	174,280
Segment profit	20,876	18,298
Goodwill	109,056	100,483
Chinese Operations [Member]
Operations of the Company's operating segments
Net Sales to External Customers	91,621	90,727
Revenue Transactions With Other Operating Segments	35,544	30,402
Total net sales	127,165	121,129
Segment profit	25,799	24,648
Goodwill	738	722
Other Operations [Member]
Operations of the Company's operating segments
Net Sales to External Customers	101,433	98,374
Revenue Transactions With Other Operating Segments	1,135	1,420
Total net sales	102,568	99,794
Segment profit	9,159	9,487
Goodwill	14,795	13,877
Intersegment Elimination [Member]
Operations of the Company's operating segments
Net Sales to External Customers	0	0
Revenue Transactions With Other Operating Segments	(195,117)	(175,434)
Total net sales	(195,117)	(175,434)
Segment profit	(24,742)	(25,858)
Goodwill	$ 0	$ 0