Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2012

Summary of Significant Accounting Policies [Abstract]

Intangible Assets

Deferred Credits

Deferred credits are included in “deferred revenues and below-market tenant leases” and “below-market tenant leases, deferred ground lease payable and other liabilities” on the Company's consolidated balance sheet and consist of the estimated fair value of the following items recorded in conjunction with acquisitions: (1) below-market tenant leases for contractual interests with tenants on the acquired wireless infrastructure and (2) above-market leases for land interests under the Company's wireless infrastructure.

Fair value for these deferred credits represents the difference between the stated contractual payments to be made pursuant to the in-place lease and management's estimate of fair market lease rates for each corresponding lease. Deferred credits are measured over a period equal to the estimated remaining economic lease term considering renewal provisions, and economics associated with those renewal provisions, to the extent applicable. Below-market tenant leases and above-market leases for land interests are amortized to site rental revenues and site rental costs of operations, respectively, over their respective estimated remaining lease term at the acquisition date.

Recent accounting prounouncements

No accounting pronouncements adopted during the nine months ended September 30, 2012 had a material impact on the Company's consolidated financial statements. No new accounting pronouncements issued during the nine months ended September 30, 2012 but not yet adopted are expected to have a material impact on the Company's consolidated financial statements.