Financial Instruments (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financial Instruments (Textual) [Abstract]
Fair value of contracts recorded in asset position in other current assets	$ 83,261		$ 87,802
Liability position recorded in accrued liabilities	89,948		80,148
Financial Instruments (Additional Textual) [Abstract]
Senior unsecured notes principal amount	450,000		450,000
Undesignated derivative forward contracts	211
Unrealized gains (loss) related to forward contracts	(188)	2,834
Maturity date of foreign currency derivative contracts	Apr. 30, 2014
Ownership Percentage by company	51.00%
Percentage of ownership Right of Non controlling to purchase by company	49.00%
Estimated redemption value of put option	10,290
Amount of accretion	219
Preferred stock	121,997		121,649
Fair value of the redeemable preferred stock	184,967		169,193
Interest Rate Swap [Member]
Financial Instruments (Textual) [Abstract]
USD notional amount	1,032
Fair value of interest rate swap	40
Interest expense for interest rate swap	40	53
Reclassified interest expense	40
Swap contract maturity date	Sep. 30, 2013
Foreign Exchange Forward [Member]
Financial Instruments (Textual) [Abstract]
Notional amount of foreign currency cash flow	18,520
Fair value of contracts recorded in asset position in other current assets	563
Liability position recorded in accrued liabilities	14
Amount reclassified from AOCI into cost of products sold	(50)
Transaction period of Forward foreign exchange contracts	2013-12
Senior Notes [Member]
Financial Instruments (Textual) [Abstract]
Fair values of the Senior Notes	$ 487,125		$ 480,938

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Forward foreign exchange contracts transaction period.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Fair value as of the balance sheet date of all foreign currency derivatives not designated as hedging instruments.

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Fair value as of the balance sheet date of all derivative liabilities designated as interest rate fair value hedging instruments.

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Date the foreign currency exchange rate derivatives mature or expire, in CCYY-MM-DD format.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Aggregate notional amount of all foreign currency derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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