v3.5.0.2

Segment Information - Schedule of Financial Information Concerning Reportable Operating Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues, net |  | $ 167,136 | $ 198,547 | $ 331,152 | $ 402,744
Total direct expenses |  | 152,417 | 168,828 | 304,971 | 338,035
Total segment selling, general and administrative expenses |  | 11,778 | 12,047 | 23,451 | 23,284
Total |  | 7,163 | 17,632 | 6,593 | 41,324
Interest expense |  | (7,540) | (7,155) | (15,073) | (14,325)
Earnings (loss) before income taxes |  | 117 | 11,044 | (7,371) | 28,028
Reportable Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues, net |  | 167,136 | 198,547 | 331,152 | 402,744
Total direct expenses | [1] | 152,493 | 168,934 | 305,047 | 338,209
Total segment selling, general and administrative expenses |  | 4,520 | 4,010 | 8,866 | 7,912
Total segment expenses |  | 157,013 | 172,944 | 313,913 | 346,121
Total |  | 10,123 | 25,603 | 17,239 | 56,623
Reportable Operating Segments [Member] | Air Medical [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues, net |  | 75,547 | 81,642 | 145,607 | 154,027
Total direct expenses | [1] | 58,997 | 63,576 | 116,041 | 123,615
Total segment selling, general and administrative expenses |  | 2,642 | 2,527 | 5,237 | 5,156
Total |  | 13,908 | 15,539 | 24,329 | 25,256
Reportable Operating Segments [Member] | Oil and Gas [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues, net |  | 83,185 | 112,839 | 171,622 | 233,235
Total direct expenses | [1],[2] | 87,400 | 100,262 | 179,316 | 200,593
Total segment selling, general and administrative expenses |  | 1,605 | 1,275 | 3,132 | 2,434
Total |  | (5,820) | 11,302 | (10,826) | 30,208
Reportable Operating Segments [Member] | Technical Services [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues, net |  | 8,404 | 4,066 | 13,923 | 15,482
Total direct expenses | [1] | 6,096 | 5,096 | 9,690 | 14,001
Total segment selling, general and administrative expenses |  | 273 | 208 | 497 | 322
Total |  | 2,035 | (1,238) | 3,736 | 1,159
Segment Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Other, net | [3] | 4,792 | 633 | 5,048 | 1,102
Interest expense |  | (7,540) | (7,155) | (15,073) | (14,325)
Unallocated Selling, General and Administrative Expenses [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Unallocated selling, general and administrative costs | [1] | $ (7,258) | $ (8,037) | $ (14,585) | $ (15,372)
[1] | Included in direct expenses and unallocated selling, general and administrative costs are the depreciation and amortization expense amounts below: Depreciation and Amortization Expense Quarter Ended June 30, Six Months Ended June 30, Segment Direct Expense: 2016 2015 2016 2015 Oil and Gas $ 10,024 $ 10,323 $ 19,942 $ 21,603 Air Medical 5,132 4,750 9,387 8,848 Technical Services 157 132 285 260 Total $ 15,313 $ 15,205 $ 29,614 $ 30,711 Unallocated SG&A $ 2,476 $ 3,155 $ 5,147 $ 5,801
[2] | Includes Equity in loss of unconsolidated affiliate.
[3] | Consists of gains on disposition of property and equipment, and other income.

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