Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Summary of Intangible Assets

The following is a summary of intangible assets at March 31, 2013 and December 31, 2012:

	Estimated Life (Years)		March 31, 2013				December 31, 2012
			Gross  Carrying Amount		Accumulated Amortization		Gross  Carrying Amount		Accumulated Amortization
Amortizable Intangible Assets:
Customer lists and contracts		7 – 10	$	483,306	$	457,559	$	482,883	$	455,549
Non-competition agreements		3 – 15		63,537		62,686		63,519		62,566
Site locations		15		1,451,802		1,033,595		1,449,181		1,009,631
Other		5 – 15		14,008		13,404		13,608		13,133
			$	2,012,653	$	1,567,244	$	2,009,191	$	1,540,879
Unamortizable Intangible Assets:
Goodwill			$	1,739,342	$	253,536	$	1,738,686	$	253,536