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GOODWILL AND INTANGIBLE ASSETS - Change In Carrying Amount Of Telecommunications Licenses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Telecommunications licenses |  |
Impairment of intangible assets | $ 0 | $ 0
Changes in the carrying amount of the company's telecommunications licenses, by operating segment |  |
Balance at the beginning of the period | 43,468 |
Balance at the end of the period | 48,291 | 43,468
Telecommunications Licenses |  |
Telecommunications licenses |  |
Impairment of intangible assets | 0 | 0
Changes in the carrying amount of the company's telecommunications licenses, by operating segment |  |
Balance at the beginning of the period | 43,468 | 44,090
Deconsolidation of subsidiary | (2,178) |
Acquired licenses | 7,623 |
Amortization | (622) | (622)
Balance at the end of the period | 48,291 | 43,468
Telecommunications Licenses | U.S. Telecom |  |
Changes in the carrying amount of the company's telecommunications licenses, by operating segment |  |
Balance at the beginning of the period | 24,944 | 24,944
Balance at the end of the period | 24,944 | 24,944
Telecommunications Licenses | International Telecom |  |
Changes in the carrying amount of the company's telecommunications licenses, by operating segment |  |
Balance at the beginning of the period | 18,524 | 19,146
Deconsolidation of subsidiary | (2,178) |
Acquired licenses | 7,623 |
Amortization | (622) | (622)
Balance at the end of the period | $ 23,347 | $ 18,524

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the capitalized costs to acquire rights under a license arrangement (for example, to sell specified products in a specified territory) having an indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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