Monetary amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

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Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire.

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Current period adjustment in other comprehensive income reflecting gains or losses on foreign currency transactions that are designated as, and are effective as, hedges of a net investment in a foreign entity, net of tax effect.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 52

-Paragraph 20

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section 45

-Paragraph 20

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900

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Derivative Instruments, Hedging Activities and Fair Value (Details 3) (USD $)	3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 British pounds sterling Commitments to sell foreign currencies	Dec. 31, 2010 British pounds sterling Commitments to sell foreign currencies	Sep. 30, 2011 British pounds sterling Commitments to purchase foreign currencies	Dec. 31, 2010 British pounds sterling Commitments to purchase foreign currencies	Sep. 30, 2011 Euros Commitments to sell foreign currencies	Dec. 31, 2010 Euros Commitments to sell foreign currencies	Sep. 30, 2011 Euros Commitments to purchase foreign currencies	Dec. 31, 2010 Euros Commitments to purchase foreign currencies	Sep. 30, 2011 Other currencies Commitments to sell foreign currencies	Dec. 31, 2010 Other currencies Commitments to sell foreign currencies	Sep. 30, 2011 Other currencies Commitments to purchase foreign currencies	Dec. 31, 2010 Other currencies Commitments to purchase foreign currencies	Sep. 30, 2011 Foreign currency forward exchange contracts	Dec. 31, 2010 Foreign currency forward exchange contracts
Foreign Currency Derivatives
Maximum maturity period of unsecured contracts (in months)																	Seven
U.S. Dollar Equivalent					$ 44,879,000	$ 54,479,000	$ 4,640,000	$ 208,000	$ 136,001,000	$ 93,831,000	$ 78,388,000	$ 44,571,000	$ 4,558,000	$ 5,314,000	$ 17,916,000	$ 15,748,000	$ 286,382,000	$ 214,151,000
Recognized Gain (Loss)					256,000	1,806,000	(20,000)	(2,000)	177,000	(104,000)	533,000	(338,000)	279,000	(86,000)	10,000	441,000	1,235,000	1,717,000
Pre-tax net gain (loss) on certain loans designated as hedges of net investments in foreign subsidiaries	$ 5,500,000	$ 36,600,000	$ (3,700,000)	$ (15,500,000)