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Investments in Trip Linhas Aereas ("TRIP") (Details) (USD $)	9 Months Ended		0 Months Ended		3 Months Ended	0 Months Ended	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jul. 12, 2012 Trip Linhas Aereas [Member]	Jul. 13, 2012 Trip Linhas Aereas [Member] item	Sep. 30, 2014 Trip Linhas Aereas [Member]	Jul. 13, 2012 Trip Investimentos Ltd	Sep. 30, 2014 Trip Investimentos Ltd
Investments in other companies
Percentage ownership sold			20.00%
Proceeds received from sale of Trip Linhas Aereas stock	$ 17,237,000	$ 16,658,000		$ 42,000,000
Number of installments				3
Option to acquire ownership (as a percent)						15.38%
Gain (loss) on equity method investments					24,900,000
interest income received							$ 2,100,000

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Represents number of installments scheduled for payment under purchase agreement.

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- Definition

Represents percentage ownership acquisition option given by purchaser of the shares under purchase agreement.

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- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions sold.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

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

-Publisher FASB

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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