Assets Held For Sale And Impairments [Line Items]

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- Definition

Property, Plant and Equipment, Number of Aircraft Donated

+ References

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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- Definition

The number of aircraft sold by the entity during the period.

+ References

No definition available.

+ Details

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- Details

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Asset Disposals - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019 Air-craft	Mar. 31, 2018 Air-craft	Jun. 30, 2019 USD ($) Air-craft	Jun. 30, 2018 USD ($) Air-craft
Assets Held For Sale And Impairments [Line Items]
Number of aircraft sold	0
Cash realized from sale of assets \| $			$ 1.2	$ 1.5
Gain (loss) on disposal of assets \| $			$ 0.2	$ (0.7)
Technical Services Segment [Member]
Assets Held For Sale And Impairments [Line Items]
Number of aircraft sold			2
Air Medical [Member] \| Light Aircraft [Member]
Assets Held For Sale And Impairments [Line Items]
Number of aircraft sold		1
Oil and Gas [Member]
Assets Held For Sale And Impairments [Line Items]
Number of aircraft donated		1
Oil and Gas [Member] \| Light Aircraft [Member]
Assets Held For Sale And Impairments [Line Items]
Number of aircraft sold				1
Oil and Gas [Member] \| Medium Aircraft [Member]
Assets Held For Sale And Impairments [Line Items]
Number of aircraft sold				1