v3.7.0.1

Segment Information - Schedule of Financial Information Concerning Reportable Operating Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Segment Reporting Information [Line Items] |  |  |
Total operating revenues |  | $ 134,618 | $ 164,016
Total segment direct expenses |  | 136,513 | 152,554
Total segment selling, general and administrative expenses |  | 13,044 | 11,673
Total net segment profit |  | (15,942) | (570)
Interest expense |  | (8,195) | (7,533)
Loss before income taxes |  | (23,073) | (7,488)
Reportable Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total operating revenues |  | 134,618 | 164,016
Total segment direct expenses |  | 137,516 | 152,554
Total segment selling, general and administrative expenses |  | 4,939 | 4,347
Total direct and selling, general and administrative expenses |  | 142,455 | 156,901
Total net segment profit |  | (7,837) | 7,115
Reportable Operating Segments [Member] | Air Medical [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total operating revenues |  | 55,338 | 70,060
Total segment direct expenses |  | 50,842 | 57,044
Total segment selling, general and administrative expenses |  | 2,881 | 2,595
Total net segment profit |  | 1,615 | 10,421
Reportable Operating Segments [Member] | Oil and Gas [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total operating revenues |  | 71,731 | 88,437
Total segment direct expenses | [1] | 81,728 | 91,916
Total segment selling, general and administrative expenses |  | 1,720 | 1,528
Total net segment profit |  | (11,717) | (5,007)
Reportable Operating Segments [Member] | Technical Services [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total operating revenues |  | 7,549 | 5,519
Total segment direct expenses |  | 4,946 | 3,594
Total segment selling, general and administrative expenses |  | 338 | 224
Total net segment profit |  | 2,265 | 1,701
Segment Reconciling Items [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other, net | [2] | 1,064 | 256
Interest expense |  | (8,195) | (7,533)
Corporate [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Unallocated selling, general and administrative costs | [3] | $ (8,105) | $ (7,326)
[1] | Includes Equity in loss of unconsolidated affiliate.
[2] | Consists of gains on disposition of property and equipment and other income - net.
[3] | Included in segment direct expenses and unallocated selling, general, and administrative costs are the depreciation and amortization expense amounts below: Depreciation and Amortization Expense Quarter Ended March 31, 2017 2016 (Thousands of dollars) Segment Direct Expense: Oil and Gas $ 9,862 $ 9,918 Air Medical 5,477 4,256 Technical Services 146 128 Total $ 15,485 $ 14,302 Unallocated SG&A $ 1,360 $ 2,671

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