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Financial Instruments and Fair Value Measurements (Narrative) (Details) (USD $) |  | 3 Months Ended |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |
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Mar. 31, 2014 | Mar. 31, 2014 Euro-Denominated Foreign Currency Forward Contracts [Member] | Mar. 31, 2013 Euro-Denominated Foreign Currency Forward Contracts [Member] | Mar. 31, 2014 Interest Rate Swap [Member] | Mar. 31, 2013 Interest Rate Swap [Member] | Mar. 31, 2014 Senior Notes [Member] | Dec. 31, 2013 Senior Notes [Member] | Mar. 31, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Currency Contracts [Member] | Dec. 31, 2013 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Currency Contracts [Member] | Mar. 31, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Mexican Peso-Denominated Foreign Currency Forward Contracts [Member] | Dec. 31, 2013 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Mexican Peso-Denominated Foreign Currency Forward Contracts [Member] | Mar. 31, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Copper Commodity [Member] lb | Dec. 31, 2013 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Copper Commodity [Member] lb | Mar. 31, 2014 Designated as Hedging Instrument [Member] Fair Value Hedging [Member] Interest Rate Swap [Member] | Dec. 31, 2013 Designated as Hedging Instrument [Member] Fair Value Hedging [Member] Interest Rate Swap [Member] | Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Forward Currency Contracts [Member] | Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Forward Currency Contracts [Member] | Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Euro-Denominated Foreign Currency Forward Contracts [Member] | Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Euro-Denominated Foreign Currency Forward Contracts [Member] | Mar. 31, 2014 London Interbank Offered Rate (LIBOR) [Member] Interest Rate Swap [Member] | Mar. 31, 2014 People's Bank of China One-Year Lending Rate [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face value of senior secured notes |  |  |  |  |  | $ 175,000,000 | $ 175,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated fair value of senior secured notes |  |  |  |  |  | 188,800,000 | 190,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amounts |  |  |  |  |  |  |  | 33,750,000 | [1] | 45,000,000 | [1] | 33,750,000 | 45,000,000 |  |  |  |  | 45,000,000 | [1] | 45,000,000 | [1] | 13,526,000 | [1] | 13,335,000 | [1] | 13,526,000 | 13,335,000 |  |
Gain (loss) on derivative instruments held for trading purposes, net |  | (61,000) | (363,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed price commodity contracts (in pounds) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,146,000 | [1] | 1,582,000 | [1] |  |  |  |  |  |  |  |  |  |  |  |
Discription of variable rate basis of derivative |  |  |  | the Company pays a variable interest rate equal to the six-month London Interbank Offered Rate ("LIBOR") plus 7.2% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate in addition to LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.20% |
Fixed interest rate |  |  |  |  |  | 9.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reduced interest expense as a result of swap |  |  |  | (225,000) | (231,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt interest rate |  |  |  | 9.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.39%
Amount from cash flow hedge derivatives to be reclassified | $ 254,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Notional amounts represent the gross contract / notional amount of the derivatives outstanding. The fixed price commodity contract notional amounts are in pounds.

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Amount from cash flow hedge derivatives to be reclassified + References No definition available. + Details
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- Definition Quantity of fixed price commodity contracts. + References No definition available. + Details
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- Definition The net increase decrease in interest expense related to interest rate swap. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The reference rate for the variable rate of the interest rate derivative, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. + References No definition available. + Details
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- Details
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- Definition Aggregate net gain and losses (whether realized or unrealized) on all derivative instruments held for trading purposes whether or not settled physically. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41322-113958 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4F -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624186-113959 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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