Amount of segment profit recorded during the period.

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Amount of revenue from transactions with other operating segments of the same entity.

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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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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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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.

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Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Sales to External Customers									$ 2,485,983us-gaap_Revenues	$ 2,378,972us-gaap_Revenues	$ 2,341,528us-gaap_Revenues
Revenue Transactions With Other Operating Segments									0	0	0
Total Net Sales	697,428us-gaap_SalesRevenueNet	629,100us-gaap_SalesRevenueNet	608,834us-gaap_SalesRevenueNet	550,621us-gaap_SalesRevenueNet	684,250us-gaap_SalesRevenueNet	591,687us-gaap_SalesRevenueNet	578,680us-gaap_SalesRevenueNet	524,355us-gaap_SalesRevenueNet	2,485,983us-gaap_SalesRevenueNet	2,378,972us-gaap_SalesRevenueNet	2,341,528us-gaap_SalesRevenueNet
Total Segment Profit									506,871	472,892	444,499
Depreciation									33,617us-gaap_Depreciation	34,765us-gaap_Depreciation	33,421us-gaap_Depreciation
Assets	2,009,110us-gaap_Assets				2,152,819us-gaap_Assets				2,009,110us-gaap_Assets	2,152,819us-gaap_Assets	2,022,288us-gaap_Assets
Purchase of property, plant and equipment									(89,388)	(82,349)	(95,588)
Goodwill	444,085us-gaap_Goodwill				455,842us-gaap_Goodwill				444,085us-gaap_Goodwill	455,842us-gaap_Goodwill	452,351us-gaap_Goodwill
U.S. Operations Segment
Net Sales to External Customers									755,922	718,671	697,956
Revenue Transactions With Other Operating Segments									90,463	83,182	80,164
Total Net Sales									846,385	801,853	778,120
Segment Profit									134,045	137,837	138,894
Depreciation									6,068	6,223	5,799
Assets	1,294,037				1,242,501				1,294,037	1,242,501	1,128,902
Purchase of property, plant and equipment									(6,627)	(6,297)	(10,988)
Goodwill	308,861				307,933				308,861	307,933	307,933
Swiss Operations Segment
Net Sales to External Customers									137,231	132,240	124,362
Revenue Transactions With Other Operating Segments									461,171	435,904	406,485
Total Net Sales									598,402	568,144	530,847
Segment Profit									170,764	147,990	127,011
Depreciation									6,621	6,576	7,194
Assets	1,018,941				1,090,353				1,018,941	1,090,353	922,620
Purchase of property, plant and equipment									(6,567)	(6,801)	(5,529)
Goodwill	21,873				24,288				21,873	24,288	23,684
Western European Operations Segment
Net Sales to External Customers									713,318	674,278	644,361
Revenue Transactions With Other Operating Segments									124,349	112,049	101,952
Total Net Sales									837,667	786,327	746,313
Segment Profit									120,659	111,951	95,523
Depreciation									4,422	4,708	4,947
Assets	1,061,455				1,059,525				1,061,455	1,059,525	975,174
Purchase of property, plant and equipment									(5,581)	(6,096)	(5,504)
Goodwill	99,341				108,662				99,341	108,662	105,522
Chinese Operations Segment
Net Sales to External Customers									415,474	407,131	432,255
Revenue Transactions With Other Operating Segments									155,690	149,084	123,669
Total Net Sales									571,164	556,215	555,924
Segment Profit									132,521	122,214	125,217
Depreciation									6,746	6,527	5,567
Assets	816,801				731,650				816,801	731,650	631,075
Purchase of property, plant and equipment									(19,793)	(6,200)	(9,872)
Goodwill	740				746				740	746	717
Other Operations Segment
Net Sales to External Customers									464,038	446,652	442,594
Revenue Transactions With Other Operating Segments									7,527	6,308	5,133
Total Net Sales									471,565	452,960	447,727
Segment Profit									52,461	49,673	48,857
Depreciation									2,820	2,694	2,653
Assets	261,036				257,141				261,036	257,141	237,232
Purchase of property, plant and equipment									(3,315)	(7,172)	(5,542)
Goodwill	13,270				14,213				13,270	14,213	14,495
Eliminations and Corporate Segment
Net Sales to External Customers									0	0	0
Revenue Transactions With Other Operating Segments									(839,200)	(786,527)	(717,403)
Total Net Sales									(839,200)	(786,527)	(717,403)
Segment Profit									(103,579)	(96,773)	(91,003)
Depreciation									6,940	8,037	7,261
Assets	(2,443,160)				(2,228,351)				(2,443,160)	(2,228,351)	(1,872,715)
Purchase of property, plant and equipment									(47,505)	(49,783)	(58,153)
Goodwill	$ 0				$ 0				$ 0	$ 0	$ 0