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Investment in Other Companies | 12 Months Ended
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Dec. 31, 2017
Investment in Other Companies |
Investment in Other Companies | (7) Investment in Other Companies In 2014, the Company completed the sale of its 20% interest in Brazilian airline, TRIP Linhas Aéreas (“TRIP”), to TRIP Investments Ltd. (“TRIP Investimentos”). As part of the sale transaction, the Company also received options to acquire a minority interest in TRIP Investimentos. The options have an initial exercise price per share equal to the price paid by TRIP Investimentos to acquire TRIP shares from the Company subject to annual escalations. The options are scheduled to expire in 2018. The options were recorded as an asset at a nominal amount in 2014.

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- Definition The entire disclosure for cost method and equity method investments included basis, impairment losses, recognized or unrecognized gains (losses). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2197087 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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