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Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2018
Retirement Benefits [Abstract]
Employee Benefit Plans	EMPLOYEE BENEFIT PLANS AMR sponsors a 401(k) savings plan, whereby our employees can elect to make contributions pursuant to a salary reduction agreement. We make matching contributions equal to 100% of the first 5% of an employee’s contributions. Employee contributions are immediately vested whereas company matching contributions vest 50% after two years and become fully vested at the end of three years. Matching contributions to the plan were approximately $1.0 million, $0.3 million, $1.2 million, and $1.1 million for the Successor Period, the 2018 Predecessor Period, 2017 and 2016, respectively.