CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
CURRENT ASSETS:
Cash and cash equivalents	$ 368,618	$ 330,191
Restricted cash	69,316	42,215
Short-term investments and available-for-sale securities	6,018	22,270
Accounts receivable, net	136,971	100,610
Prepaid and other current assets	222,851	250,273	[1]
Deferred income taxes	25,754	29,596
Total current assets	829,528	775,155
PROPERTY AND EQUIPMENT, net	5,789,995	4,981,722	[1]
GOODWILL	2,912,046	2,676,290	[2]
OTHER INTANGIBLE ASSETS, net	3,115,053	2,495,053	[1]
DEFERRED INCOME TAXES	213,518	209,031
DEFERRED RENT ASSET	776,201	609,529
NOTES RECEIVABLE AND OTHER NON-CURRENT ASSETS	452,788	495,615	[1]
TOTAL	14,089,129	12,242,395	[2]
CURRENT LIABILITIES:
Accounts payable	89,578	215,931
Accrued expenses	286,962	305,538	[1]
Distributions payable	189	0
Accrued interest	71,271	65,729
Current portion of long-term obligations	60,031	101,816
Unearned revenue	124,147	92,483
Total current liabilities	632,178	781,497
LONG-TERM OBLIGATIONS	8,693,345	7,134,492
ASSET RETIREMENT OBLIGATIONS	435,724	344,180	[1]
OTHER NON-CURRENT LIABILITIES	643,701	572,084	[1]
Total liabilities	10,404,948	8,832,253
COMMITMENTS AND CONTINGENCIES
EQUITY:
Preferred stock: $.01 par value; 20,000,000 shares authorized; no shares issued or outstanding
Common stock: $.01 par value, 1,000,000,000 shares authorized, 395,963,218 and 393,642,079 shares issued, and 395,091,213 and 393,642,079 shares outstanding, respectively	3,959	3,936
Additional paid-in capital	5,012,124	4,903,800
Distributions in excess of earnings	(1,196,907)	(1,477,899)
Accumulated other comprehensive loss	(183,347)	(142,617)
Treasury stock (872,0005 and 0 shares at cost, respectively)	(62,728)	0
Total American Tower Corporation equity	3,573,101	3,287,220
Noncontrolling interest	111,080	122,922
Total equity	3,684,181	3,410,142
TOTAL	$ 14,089,129	$ 12,242,395

[1] December 31, 2011 balances have been revised to reflect purchase accounting measurement period adjustments.

[2] Balances have been revised to reflect purchase accounting measurement period adjustments.