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Property, Plant and Equipment (Table) | 12 Months Ended
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Dec. 31, 2014
Disclosure Text Block |
Property, plant and equipment |
December 31, | Useful Lives (Years) |  | 2014 |  | 2013
(Dollars in thousands) |  |  |  |  |  |  |
Land | N/A |  | $ | 35,031 |  | $ | 36,266
Buildings | 20 |  |  | 296,502 |  |  | 304,272
Leasehold and land improvements | 1-30 |  |  | 1,086,718 |  |  | 1,197,520
Cell site equipment | 7-25 |  |  | 3,269,609 |  |  | 3,306,575
Switching equipment | 5-8 |  |  | 960,377 |  |  | 1,161,976
Office furniture and equipment | 3-5 |  |  | 553,630 |  |  | 539,248
Other operating assets and equipment | 3-5 |  |  | 89,663 |  |  | 92,456
System development | 1-7 |  |  | 1,042,195 |  |  | 962,698
Work in process | N/A |  |  | 125,015 |  |  | 116,501
|  |  |  | 7,458,740 |  |  | 7,717,512
Accumulated depreciation and amortization |  |  |  | (4,730,523) |  |  | (4,860,992)
|  |  |  | $ | 2,728,217 |  | $ | 2,856,520

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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