Condensed Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 102,793	$ 16,737
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation, amortization and accretion	250,191	186,459
Gains (losses) on retirement of long-term obligations	0	35,909
Amortization of deferred financing costs and other non-cash interest	20,881	36,920
Stock-based compensation expense	11,956	10,029
Asset write-down charges	2,733	3,715
Deferred income tax benefit (provision)	(2,332)	14,740
Other adjustments	(774)	765
Changes in assets and liabilities, excluding the effects of acquisitions:
Increase (decrease) in accrued interest	(1,021)	27,578
Increase (decrease) in accounts payable	(10,601)	(6,545)
Increase (decrease) in deferred revenues, deferred ground lease payables, other accrued liabilities and other liabilities	34,900	10,506
Decrease (increase) in receivables	4,896	(19,808)
Decrease (increase) in prepaid expenses, deferred site rental receivables, long-term prepaid rent, restricted cash and other assets	(51,339)	(30,379)
Net cash provided by (used for) operating activities	362,283	286,626
Cash flows from investing activities:
Payment for acquisitions of businesses, net of cash acquired	(62,228)	(12,810)
Capital expenditures	(142,943)	(116,353)
Other investing activities, net	952	147
Net cash provided by (used for) investing activities	(204,219)	(129,016)
Cash flows from financing activities:
Principal payments on long-term debt and other long-term obligations	(27,739)	(25,333)
Purchases and redemptions of long-term debt	0	(644,422)
Purchases of capital stock	(21,417)	(23,579)
Borrowings under revolving credit facility	83,000	0
Payments under revolving credit facility	(89,000)	(165,000)
Payments for financing costs	(5,854)	(3,927)
Net (increase) decrease in restricted cash	14,743	425,774
Dividends/distributions paid on common stock	(116,829)	0
Dividends/distributions paid on preferred stock	(11,363)	0
Net cash provided by (used for) financing activities	(174,459)	(436,487)
Effect of exchange rate changes on cash	(6,462)	(1,622)
Net increase (decrease) in cash and cash equivalents	(22,857)	(280,499)
Cash and cash equivalents at beginning of period	223,394	441,364
Cash and cash equivalents at end of period	$ 200,537	$ 160,865