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CERTAIN RELATIONSHIPS AND RELATED-PARTY TRANSACTIONS (Details) (USD $)
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3 Months Ended | ||
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Mar. 31, 2013
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Mar. 31, 2012
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Dec. 31, 2012
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ATC Aviation Inc. [Member]
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| Related Party Transaction [Line Items] | |||
| Expenses from transactions with related party | $ 700,000 | ||
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Sublease [Member]
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| Related Party Transaction [Line Items] | |||
| Expenses from transactions with related party | (200,000) | ||
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Director Related Parties [Member]
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| Related Party Transaction [Line Items] | |||
| Revenue from transactions with related parties | 2,475,000 | 4,746,000 | |
| Expenses from transactions with related party | 2,054,000 | 3,243,000 | |
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Other Related Parties [Member]
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| Related Party Transaction [Line Items] | |||
| Revenue from transactions with related parties | 1,327,000 | 1,454,000 | |
| Expenses from transactions with related party | 5,150,000 | 1,876,000 | |
| Receivable balance | $ 13,000,000 | $ 12,200,000 | |
| X | ||||||||||
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- Definition
The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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