Amount of convertible notes tendered in exchange offer.

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Debt instrument maturity dates.

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Percentage of convertible notes tendered in exchange offer.

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Principal Amount of Senior Convertible Notes for each $925 of Subordinated Convertible Notes

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Principal Amount of Subordinated Convertible Notes for each $1000 of Senior Convertible Notes

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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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Interest rate stated in the contractual debt agreement.

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The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.

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Long-Term Debt (Narrative) (Details) (USD $)		0 Months Ended
Long-Term Debt (Narrative) (Details) (USD $)	Dec. 15, 2009 Subordinated Convertible Notes Due 2029 [Member]	Dec. 15, 2009 1.00% Senior Convertible Notes Due 2012 [Member]	Dec. 31, 2012 1.00% Senior Convertible Notes Due 2012 [Member]	Dec. 31, 2012 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Dec. 15, 2009 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Dec. 15, 2009 North America [Member] Subordinated Convertible Notes [Member]	Dec. 31, 2012 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]	Dec. 31, 2011 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]	Dec. 15, 2009 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]	Sep. 30, 2007 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]
Principal amount of Subordinated Convertible Notes for each $1000 of Senior Convertible Notes	$ 925
Principal amount of Senior Convertible Notes for each $925 of Subordinated Convertible Notes		1,000
Debt principal amount					429,500,000	429,500,000			10,600,000	475,000,000
Debt maturity date				2029			2012
Percentage of convertible notes tendered in exchange offer		97.80%					97.80%
Amount of convertible notes tendered in exchange offer		464,400,000					464,400,000
Interest rate on notes		1.00%	1.00%				1.00%	1.00%	1.00%
Non-cash loss on debt extinguishment		7,600,000
Non-cash loss on debt extinguishment, per share		$ 0.10
Write-off of unamortized debt		$ 4,900,000