v2.4.0.8

Terms of Interest Rate Swap Agreements (Details) | Dec. 31, 2012 3.31% USD ($) | Dec. 31, 2012 2.86% USD ($) | Dec. 31, 2012 2.95% USD ($) | Dec. 31, 2012 2.94% Maturity On October 31, 2016 USD ($) | Dec. 31, 2012 2.94% Maturity On December 30, 2016 USD ($) | Dec. 31, 2012 3.11% GBP (£) | Dec. 31, 2012 3.17% CAD
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Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | $ 250,000,000 |  | $ 100,000,000 |  | $ 60,000,000 |  | $ 60,000,000 |  | $ 50,000,000 |  | £ 50,000,000 |  | 25,000,000 |
Fixed Interest Rate | 3.31% | [1] | 2.86% | [1] | 2.95% | [1] | 2.94% | [1] | 2.94% | [1] | 3.11% | [1] | 3.17% | [1]
[1] | Includes applicable margin of 1.75% per annum on LIBOR or CDOR-based debt in effect as of December 31, 2012 under the Credit Agreement.

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- Definition Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 + Details
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