Impairments, Net Loss on Sale of Long-Lived Assets	12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment Impairment or Disposal [Abstract]
Asset Impairment Charges [Text Block]	16. IMPAIRMENTS, NET LOSS ON SALE OF LONG-LIVED ASSETS During the years ended December 31, 2012, 2011 and 2010, the Company recorded impairment charges and net losses on sale of long-lived assets of $34.4 million, $17.4 million and $16.7 million, respectively. These charges are primarily related to assets included in the Company's domestic rental and management segment and are included in other operating expenses in the consolidated statements of operation. Included in these amounts are impairment charges of approximately $21.5 million, $9.0 million and $12.2 million for the years ended December 31, 2012, 2011 and 2010, respectively, to write down certain assets to net realizable value after an indicator of impairment had been identified. Included in amounts recorded for the year ended December 31, 2012, was an impairment charge of approximately $10.8 million resulting from the impairment of one of the Company's outdoor DAS networks upon the termination of a tenant lease. Also included in these amounts are net losses associated with the sale or disposal of certain non-core towers, other assets and other miscellaneous items of $12.9 million, $8.4 million and $4.5 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Impairments, Net Loss on Sale of Long-Lived Assets

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment Impairment or Disposal [Abstract]

16. IMPAIRMENTS, NET LOSS ON SALE OF LONG-LIVED ASSETS

During the years ended December 31, 2012, 2011 and 2010, the Company recorded impairment charges and net losses on sale of long-lived assets of $34.4 million, $17.4 million and $16.7 million, respectively. These charges are primarily related to assets included in the Company's domestic rental and management segment and are included in other operating expenses in the consolidated statements of operation.

Included in these amounts are impairment charges of approximately $21.5 million, $9.0 million and $12.2 million for the years ended December 31, 2012, 2011 and 2010, respectively, to write down certain assets to net realizable value after an indicator of impairment had been identified. Included in amounts recorded for the year ended December 31, 2012, was an impairment charge of approximately $10.8 million resulting from the impairment of one of the Company's outdoor DAS networks upon the termination of a tenant lease.

Also included in these amounts are net losses associated with the sale or disposal of certain non-core towers, other assets and other miscellaneous items of $12.9 million, $8.4 million and $4.5 million for the years ended December 31, 2012, 2011 and 2010, respectively.