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Acquisition of Subsidiaries (Details) (Blue Hawaiian Holdings, LLC, USD $)
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0 Months Ended | ||
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Dec. 13, 2013
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Jun. 30, 2014
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Dec. 31, 2013
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Blue Hawaiian Holdings, LLC
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| Business Acquisition [Line Items] | |||
| Ownership interest acquired (in hundredths) | 100.00% | ||
| Cash purchase price | $ 66,800,000 | ||
| Estimate of increase to purchase price for adjustments | $ 3,182,000 | $ 2,282,000 | |
| Ownership interest acquired by former owners | 10.00% | 10.00% |