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Employee Benefit Plans (Details) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Defined Contribution Plans [Line Items] | |||
| Employee contribution rate, maximum (in hundredths) | 60.00% | ||
| Employee contribution, IRS maximum | $ 17,500 | ||
| Employee contribution, IRS maximum, age 50 or older | 23,000 | ||
| Employer discretionary match based on employee contributions (in hundredths) | 70.00% | ||
| Employer discretionary match based on gross pay (in hundredths) | 8.00% | ||
| Employer contributions | $ 10,793,000 | $ 9,372,000 | $ 7,033,000 |
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OF Air Holdings Corporation
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| Defined Contribution Plans [Line Items] | |||
| Employee contribution rate, maximum (in hundredths) | 50.00% | ||
| Employer discretionary match based on employee contributions (in hundredths) | 25.00% | ||
| Employer discretionary match based on gross pay (in hundredths) | 2.00% | ||