v3.8.0.1

Property and equipment- Depreciation and amortization (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Depreciation and amortization |  |
Total depreciation and amortization of property and equipment | $ 20,606 | $ 14,985
Network access |  |
Depreciation and amortization |  |
Total depreciation and amortization of property and equipment | 13,587 | 8,375
Network operations |  |
Depreciation and amortization |  |
Total depreciation and amortization of property and equipment | 4,256 | 4,155
Development and technology |  |
Depreciation and amortization |  |
Total depreciation and amortization of property and equipment | 2,508 | 2,195
General and administrative |  |
Depreciation and amortization |  |
Total depreciation and amortization of property and equipment | $ 255 | $ 260

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: 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=98514028&loc=d3e3602-108585 + Details
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