Condensed Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 70,114		$ 167,354
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation, amortization and accretion	377,110		291,882
Gains (losses) on retirement of long-term obligations	36,486	[1]	14,586
Amortization of deferred financing costs and other non-cash interest	57,471		48,780
Stock-based compensation expense	19,472		17,105
Asset write-down charges	6,812		6,690
Deferred income tax benefit (provision)	50,143		(65,544)
Other adjustments	1,291		(41)
Changes in assets and liabilities, excluding the effects of acquisitions:
Increase (decrease) in accrued interest	34,563		(1,950)
Increase (decrease) in accounts payable	2,727		(2,488)
Increase (decrease) in deferred revenues, deferred ground lease payables, other accrued liabilities and other liabilities	45,362		(3,145)
Decrease (increase) in receivables	(11,647)		(26,225)
Decrease (increase) in prepaid expenses, deferred site rental receivables, long-term prepaid rent, restricted cash and other assets	(129,877)		(122,662)
Net cash provided by (used for) operating activities	560,027		324,342
Cash flows from investing activities:
Payment for acquisitions of businesses, net of cash acquired	(27,280)		(1,199,316)
Capital expenditures	(254,820)		(159,697)
Other investing activities, net	6,644		1,188
Net cash provided by (used for) investing activities	(275,456)		(1,357,825)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	30,941		2,100,000
Proceeds from issuance of capital stock	0		238
Principal payments on long-term debt and other long-term obligations	(51,085)		(34,744)
Purchases and redemptions of long-term debt	(675,480)		(699,486)
Purchases of capital stock	(98,867)		(35,673)
Borrowings under revolving credit facility	48,000		0
Payments under revolving credit facility	(255,000)		(251,000)
Payments for financing costs	(5,654)		(40,237)
Net (increase) decrease in restricted cash	411,048		12,620
Dividends on preferred stock	0		(2,481)
Net cash provided by (used for) financing activities	(596,097)		1,049,237
Effect of exchange rate changes on cash	(2,952)		301
Net increase (decrease) in cash and cash equivalents	(314,478)		16,055
Cash and cash equivalents at beginning of period	441,364		80,120
Cash and cash equivalents at end of period	$ 126,886		$ 96,175

[1] The losses predominantly relate to cash losses, including with respect to make whole payments.