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Nature of Operations And Basis of Presentation (Details) | Dec. 31, 2018 Air_craft
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Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |
Number of Aircraft engines | 23
North Shore Aviation Holdings LLC [Member] |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |
Noncontrolling Interest, Ownership Percentage by Parent | 27.50%
Number of Aircraft engines | 5

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