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Description of the Business - Additional Information (Narrative) (Details) (USD $)
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12 Months Ended |
0 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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May 02, 2013
Aircraft
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Apr. 30, 2012
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Sep. 03, 2013
Aircraft
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| Business Acquisition [Line Items] |
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| Equity interest held (as a percent) |
100.00% |
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| Common stock, par value |
$ 0.0001 |
$ 0.0001 |
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| Proceeds from Issuance Initial Public Offering |
$ 0 |
$ 0 |
$ 31,454,000 |
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| Common stock, outstanding shares |
13,823,818 |
13,787,914 |
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| Customer Relationships (EHI) |
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| Business Acquisition [Line Items] |
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| Number of aircranes operated |
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63 |
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| 8.25% Second Priority Senior Secured Obligations Due 2020 |
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| Business Acquisition [Line Items] |
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| Debt instrument, face amount |
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400,000,000 |
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| Interest rate (as a percent) |
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8.25% |
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| Debt instrument, maturity period |
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2020 |
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| Net proceeds from offering |
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386,400,000 |
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| Escrow account deposit |
46,000,000 |
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46,000,000 |
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| Notes offering, aggregate principal amount |
45,000,000 |
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45,000,000 |
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| Notes offering, anticipated interest |
1,000,000 |
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1,000,000 |
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| Principal amount of notes subject to special mandatory redemption |
45,000,000 |
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45,000,000 |
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| Percentage of redemption price subject to special mandatory redemption |
100.00% |
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100.00% |
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| Outside of North America |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
21 |
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| Number of aircranes operated |
20 |
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| Heavy Lift Helicopters |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
19 |
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| S-64 E Model Aircranes |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
13 |
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| S-64 F Model Aircranes |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
6 |
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| Medium and Light Lift Aircraft |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
35 |
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| Number of aircranes leased |
31 |
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| Rotor Wing Aircraft |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
28 |
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6 |
| Number of aircranes leased |
26 |
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| Fixed-Wing Aircraft |
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| Business Acquisition [Line Items] |
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| Number of aircranes owned |
7 |
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| Number of aircranes leased |
5 |
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| Heavy Lift Aircrafts |
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| Business Acquisition [Line Items] |
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| Number of aircranes leased |
1 |
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| European Air-Crane S.p.A. | SIMA |
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| Business Acquisition [Line Items] |
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| Equity interest held (as a percent) |
60.00% |
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| EACM | Layang-Layang Services Sdn. Bhd. |
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| Business Acquisition [Line Items] |
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| Equity interest held (as a percent) |
49.00% |
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| Common Stock |
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| Business Acquisition [Line Items] |
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| Common stock shares issued |
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4,800,000 |
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4,800,000 |
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| Sale Of Stock, Shares Issued To Existing Stockholders |
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1,050,000 |
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| Common stock, par value |
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$ 8.00 |
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| Proceeds From Issuance Initial Public Offering, Gross |
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38,400,000 |
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| Proceeds from Issuance Initial Public Offering |
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31,500,000 |
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| Stock Issuance Costs, Underwriting Discounts And Commissions |
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2,100,000 |
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| Stock Issuance Costs, Other Offering Costs |
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$ 4,800,000 |
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| Common stock, outstanding shares |
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4,802,970 |
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