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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and equipment (Details) | 12 Months Ended
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Dec. 31, 2017
Land rights |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 50 years
Other telecommunication peripherals |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 5 years
Minimum | Buildings |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 15 years
Minimum | Leasehold improvements |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 2 years
Minimum | Switching equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 3 years
Minimum | Telegraph, telex and data communication equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 5 years
Minimum | Transmission installation and equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 3 years
Minimum | Satellite, earth station and equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 3 years
Minimum | Cable network |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 5 years
Minimum | Power supply |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 3 years
Minimum | Data processing equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 3 years
Minimum | Office equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 2 years
Minimum | Vehicles |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 4 years
Minimum | CPE assets |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 4 years
Minimum | Other equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 2 years
Maximum | Buildings |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 40 years
Maximum | Leasehold improvements |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 15 years
Maximum | Switching equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 15 years
Maximum | Telegraph, telex and data communication equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 15 years
Maximum | Transmission installation and equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 25 years
Maximum | Satellite, earth station and equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 20 years
Maximum | Cable network |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 25 years
Maximum | Power supply |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 20 years
Maximum | Data processing equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 20 years
Maximum | Office equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 5 years
Maximum | Vehicles |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 8 years
Maximum | CPE assets |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 5 years
Maximum | Other equipment |
PROPERTY, PLANT AND EQUIPMENT, NET |
Estimated useful lives of property and equipment | 5 years

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The useful lives used for property, plant and equipment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Details
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