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Derivative Financial Instruments - Additional Information (Detail) In Thousands, unless otherwise specified | 9 Months Ended | 1 Months Ended |  | 1 Months Ended | 9 Months Ended
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Sep. 30, 2013 W.E.T. | Mar. 31, 2008 W.E.T. Interest Rate Swap | Sep. 30, 2013 W.E.T. Interest Rate Swap USD ($) | Sep. 30, 2013 W.E.T. Interest Rate Swap EUR (€) | Mar. 31, 2013 Unicredit Bank EUR (€) | Sep. 30, 2013 Unicredit Bank USD ($) | Sep. 30, 2013 Unicredit Bank EUR (€)
Derivative Instruments [Line Items] |  |  |  |  |  |  |
Derivative maturity period |  | 10 years |  |  |  |  |
Derivative notional amount |  |  | $ 13,508 | € 10,000 |  |  |
Derivative variable rate basis | six month EURIBOR |  |  |  |  |  |
Fixed interest rate | 0.45% |  |  |  |  |  |
Basis spread on variable rate | 1.40% |  |  |  |  |  |
Exchange rate | 1.23 |  |  |  |  |  |
Derivative exchange rate | 1.46 |  |  |  |  |  |
Legal settlement for CRS |  |  |  |  | 144 |  |
Costs of all future obligations under CRS |  |  |  |  |  | 12,030 | 8,906
Past due payments under CRS |  |  |  |  |  | $ 6,659 | € 4,930

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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 Of Potential Future Financial Obligations + References No definition available. + Details
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- Definition Currency Exchange Rate + References No definition available. + Details
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- Details
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- Definition Legal Settlement + References No definition available. + Details
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- Definition Litigation Costs Payable + 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 percentage points added to the reference rate to compute the variable rate on the interest rate derivative. + References No definition available. + 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 Contractual rate at which a foreign currency can be purchased or sold. + References No definition available. + Details
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- Definition Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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