v2.4.0.8

Patient Transport Revenue Recognition (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Revenue from External Customer [Line Items] |  |  |
Allowance for uncompensated care as a percentage of receivables from non-governmental payers (in hundredths) | 39.20% | 40.10% |
Allowances for contractual discounts and uncompensated care [Abstract] |  |  |
Allowance for contractual discounts | $ 183,106 | $ 134,257 |
Allowance for uncompensated care | 118,612 | 121,623 |
Total | 301,718 | 255,880 |
Patient transport revenue, net of provision for contractual discounts | 971,535 | 910,939 | 625,182
Third-Party Payers |  |  |
Allowances for contractual discounts and uncompensated care [Abstract] |  |  |
Patient transport revenue, net of provision for contractual discounts | 726,111 | 693,395 | 481,589
Self-pay patients |  |  |
Allowances for contractual discounts and uncompensated care [Abstract] |  |  |
Patient transport revenue, net of provision for contractual discounts | $ 245,424 | $ 217,544 | $ 143,593

X
- Definition Allowance established for the difference between revenue at established rates and either the amounts billable or expected third-party payor payments. + References No definition available. + Details
Name: | airm_AllowanceForContractualDiscounts
Namespace Prefix: | airm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition A valuation allowance for uncompensated care related primarily to billings to self-pay patients that are expected to be uncollectible. + References No definition available. + Details
Name: | airm_AllowanceForUncompensatedCare
Namespace Prefix: | airm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for uncompensated care presented as a percentage of receivables from non-governmental payers. + References No definition available. + Details
Name: | airm_AllowanceForUncompensatedCarePercentage
Namespace Prefix: | airm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Revenue generated from medical flight fees billed to patients, their insurers, or governmental agencies, net of provision for contractual discounts. + References No definition available. + Details
Name: | airm_PatientTransportRevenueNetOfProvisionForContractualDiscounts
Namespace Prefix: | airm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration