v2.4.0.8

Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 12 Months Ended |  |  | 12 Months Ended |  |  |
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Aug. 31, 2009 Agreement | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2009 | Dec. 31, 2012 Minimum [Member] | Dec. 31, 2012 Maximum [Member] | Dec. 31, 2012 Interest rate swaps [Member] | Dec. 31, 2011 Interest rate swaps [Member] | Dec. 31, 2009 Interest rate swaps [Member] | Dec. 31, 2012 Foreign exchange currency contracts [Member] | Dec. 31, 2011 Foreign exchange currency contracts [Member] | Dec. 31, 2012 Freestanding derivatives [Member] | Dec. 31, 2011 Freestanding derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum duration of hedging of interest rate swap derivative exposure |  | 7 months |  |  |  |  |  |  |  |  |  |  |
Number of interest rate swap agreements | 4 |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swap agreements, aggregate notional amounts |  |  |  | $ 140.0 |  |  |  |  |  |  |  |  |
Weighted average fixed interest rate on notional amounts |  |  |  |  |  |  |  |  | 2.78% |  |  |  |
Interest rate applicable on interest rate swap agreements for stipulated period |  |  |  |  |  |  |  |  | 1 month LIBOR rate |  |  |  |
Expiration date of interest rate swap agreements |  |  |  |  |  |  | Jul. 31, 2013 | Jul. 31, 2013 | Jul. 31, 2013 |  |  |  |
Effective date of interest rate swap agreements |  |  |  |  |  |  |  |  | Dec. 31, 2009 |  |  |  |
Interest on credit facility |  |  |  |  | LIBOR + 1.50 | LIBOR + 2.50 |  |  |  |  |  |  |
Average effective fixed rate on notional balances of debt and interest rate swap, minimum |  | 4.28% |  |  |  |  |  |  |  |  |  |  |
Average effective fixed rate on notional balances of debt and interest rate swap, maximum |  | 5.28% |  |  |  |  |  |  |  |  |  |  |
Liabilities related to interest rate swaps at fair value |  | 6.6 | 5.8 |  |  |  | 2.0 | 5.1 |  | 4.6 | 0.7 |  |
Outstanding notional amount of foreign currency forward contract |  | 610.1 | 318.8 |  |  |  |  |  |  | 256.9 | 64.4 |  |
Expected maturity period of foreign currency forward contracts |  |  |  |  |  |  |  |  |  | 12 months |  |  |
Fair value of outstanding foreign currency forward contracts |  |  |  |  |  |  |  |  |  | 0.5 | 4.4 |  |
Derivative liability fair value |  |  |  |  |  |  |  |  |  | 3.3 |  |  |
Average remaining maturity of foreign currency derivative |  | Less than twelve months | Less than fifteen months |  |  |  |  |  |  |  |  | Within one month | Within one month
Cash flow hedge reclassified in to earnings over next twelve months |  | $ 5.3 |  |  |  |  |  |  |  |  |  |  |

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- Definition Average effective fixed rate on notional balances of debt and interest rate swap, minimum. + References No definition available. + Details
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- Definition Average remaining maturity of foreign currency derivative. + References No definition available. + Details
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- Definition Number of interest rate swap agreements. + References No definition available. + Details
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- Definition Fair value of all asset derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Fair value of all liability derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 45 -Subparagraph b(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + 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 Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition High end period remaining until maturity for the derivative contract, 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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- Definition Date the entity entered into the derivative contract, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + 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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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Aggregate notional amount of foreign currency exchange rate derivatives. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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