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Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2014
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event In October 2014, we entered into certain lease agreements for office buildings with a total obligation of approximately $1.0 billion with lease periods expiring between 2027 and 2028. We are committed to pay a portion of the related operating expenses under these lease agreements which are not included in the total obligation amount. We are currently in the process of evaluating the impact of these lease agreements on our consolidated financial statements.