v3.8.0.1

Commitments and Contingencies - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2017 USD ($) Land_Parcel
Long-term Purchase Commitment [Line Items] |
Purchase commitment for aircraft | $ 0
Total aircraft deposits | 500,000
Aggregate estimated probable liability environmental matters | $ 150,000
Number of parcels of land exists | Land_Parcel | 2
Aggregate commitments under operating leases | $ 194,900,000
Operational lease payable | 10,700,000
Lease commitment for aircraft | 182,000,000
Facility lease commitments | 12,900,000
2018 [Member] |
Long-term Purchase Commitment [Line Items] |
Aggregate purchase price for aircraft | 127,000,000
2019 [Member] |
Long-term Purchase Commitment [Line Items] |
Aggregate purchase price for aircraft | 129,000,000
2020 [Member] |
Long-term Purchase Commitment [Line Items] |
Aggregate purchase price for aircraft | $ 22,700,000

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- Definition Aggregate commitments under operating leases. + References No definition available. + Details
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- Definition Deposits on equipment purchases noncurrent. + References No definition available. + Details
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- Definition Facility lease commitments. + References No definition available. + Details
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- Definition Lease commitment for aircraft. + References No definition available. + Details
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- Definition Number of land parcels. + References No definition available. + Details
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- Definition Operational lease payable. + References No definition available. + Details
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
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- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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