v3.6.0.2

Business Segments and Geographic Areas (Tables) | 12 Months Ended
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Dec. 31, 2016
Segment Reporting [Abstract] |
Schedule of Accounts Receivable and Revenue by Major Customers by Reporting Segments | The customers, individually or considered as a group under common ownership, which accounted for greater than 10% of accounts receivable or 10% of operating revenues during the periods reflected were as follows:
|  | Accounts Receivable |  |  | Operating Revenues |
|  | December 31, |  |  | Years Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |  |  | 2014 |
Oil and Gas segment: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer A |  |  | 8 | % |  |  | 6 | % |  |  | 14 | % |  |  | 15 | % |  |  | 17 | %
Customer B |  |  | 8 | % |  |  | 9 | % |  |  | 10 | % |  |  | 11 | % |  |  | 13 | %
Air Medical & |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Technical Services segments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer C |  |  | 13 | % |  |  | 15 | % |  |  | 5 | % |  |  | 9 | % |  |  | 10 | %
Schedule of Profit or Loss and Assets of Each of Company's Reportable Segments | The following table shows information about the profit or loss and assets of each of the Company’s reportable segments for the years ended December 31, 2016, 2015, and 2014.
|  | Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (Thousands of dollars) |
Segment operating revenues |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas |  | $ | 324,129 |  |  | $ | 459,611 |  |  | $ | 516,909 |
Air Medical |  |  | 281,868 |  |  |  | 312,775 |  |  |  | 300,212 |
Technical Services |  |  | 28,101 |  |  |  | 31,842 |  |  |  | 19,149 |
Total operating revenues |  |  | 634,098 |  |  |  | 804,228 |  |  |  | 836,270 |
Segment direct expenses |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas(1) |  |  | 344,640 |  |  |  | 411,757 |  |  |  | 411,679 |
Air Medical |  |  | 227,877 |  |  |  | 246,487 |  |  |  | 243,573 |
Technical Services |  |  | 19,882 |  |  |  | 29,112 |  |  |  | 14,851 |
Total segment direct expenses |  |  | 592,399 |  |  |  | 687,356 |  |  |  | 670,103 |
Segment selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas |  |  | 6,739 |  |  |  | 6,511 |  |  |  | 4,615 |
Air Medical |  |  | 10,968 |  |  |  | 10,455 |  |  |  | 9,801 |
Technical Services |  |  | 1,101 |  |  |  | 805 |  |  |  | 157 |
Total segment selling, general and administrative expenses |  |  | 18,808 |  |  |  | 17,771 |  |  |  | 14,573 |
Total segment expenses |  |  | 611,207 |  |  |  | 705,127 |  |  |  | 684,676 |
Net segment (loss) profit |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas |  |  | (27,250 | ) |  |  | 41,343 |  |  |  | 100,615 |
Air Medical |  |  | 43,023 |  |  |  | 55,833 |  |  |  | 46,838 |
Technical Services |  |  | 7,118 |  |  |  | 1,925 |  |  |  | 4,141 |
Total net segment profit |  |  | 22,891 |  |  |  | 99,101 |  |  |  | 151,594 |
Other, net (2) |  |  | 6,214 |  |  |  | 1,872 |  |  |  | (10,539 | )
Unallocated selling, general and administrative expenses |  |  | (25,610 | ) |  |  | (28,651 | ) |  |  | (28,597 | )
Interest expense |  |  | (30,644 | ) |  |  | (29,066 | ) |  |  | (29,510 | )
Loss on debt extinguishment |  |  | — |  |  |  | — |  |  |  | (29,833 | )
(Loss) earnings before income taxes |  | $ | (27,149 | ) |  | $ | 43,256 |  |  | $ | 53,115 |
(1) | Includes equity in gain/loss of unconsolidated affiliate.
(2) | Includes gain/loss on disposition of property and equipment, asset impairments, and other income.
Summary of Gains on Disposition of Property and Equipment and Other Income |
|  | Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (Thousands of dollars) |
Expenditures for Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas |  | $ | 59,278 |  |  | $ | 32,501 |  |  | $ | 119,235 |
Air Medical |  |  | 22,429 |  |  |  | 22,685 |  |  |  | 37,317 |
Corporate |  |  | 1,164 |  |  |  | 1,389 |  |  |  | 1,153 |
Total |  | $ | 82,871 |  |  | $ | 56,575 |  |  | $ | 157,705 |
|  | Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (Thousands of dollars) |
Depreciation and Amortization |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas |  | $ | 40,170 |  |  | $ | 42,709 |  |  | $ | 29,635 |
Air Medical |  |  | 19,716 |  |  |  | 18,177 |  |  |  | 13,067 |
Technical Services |  |  | 564 |  |  |  | 518 |  |  |  | 493 |
Corporate |  |  | 5,293 |  |  |  | 10,214 |  |  |  | 7,653 |
Total |  | $ | 65,743 |  |  | $ | 71,618 |  |  | $ | 50,848 |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Oil and Gas |  | $ | 674,788 |  |  | $ | 704,472 |  |  |  |  |
Air Medical |  |  | 368,474 |  |  |  | 329,484 |  |  |  |  |
Technical Services |  |  | 9,568 |  |  |  | 7,345 |  |  |  |  |
Corporate |  |  | 395,610 |  |  |  | 385,032 |  |  |  |  |
Total |  | $ | 1,448,440 |  |  | $ | 1,426,333 |  |  |  |  |
Summary of Company's Revenues from External Customers and Long-Lived Assets, by Geographical Areas | The following table presents the Company’s revenues from external customers attributed to operations in the United States and foreign areas and long-lived assets in the United States and foreign areas.
|  | As of or for Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (Thousands of dollars) |
Operating Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 579,300 |  |  | $ | 722,339 |  |  | $ | 747,063 |
International |  |  | 54,798 |  |  |  | 81,889 |  |  |  | 89,207 |
Total |  | $ | 634,098 |  |  | $ | 804,228 |  |  | $ | 836,270 |
Long-Lived Assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 751,290 |  |  | $ | 773,939 |  |  |  |  |
International |  |  | 152,687 |  |  |  | 109,590 |  |  |  |  |
Total |  | $ | 903,977 |  |  | $ | 883,529 |  |  |  |  |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599 + Details
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