Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Site leasing		$ 370,462	$ 340,452	$ 740,189	$ 649,771
Site development		40,242	42,968	80,609	79,198
Total revenues		410,704	383,420	820,798	728,969
Cost of revenues (exclusive of depreciation, accretion, and amortization shown below):
Cost of site leasing		81,731	75,382	161,950	145,122
Cost of site development		30,381	32,056	61,274	59,483
Selling, general, and administrative	[1]	28,262	25,441	58,145	50,118
Acquisition related adjustments and expenses		5,780	2,225	7,119	10,786
Asset impairment and decommission costs		4,010	3,994	10,832	7,562
Depreciation, accretion, and amortization		162,377	161,005	334,230	305,447
Total operating expenses		312,541	300,103	633,550	578,518
Operating income		98,163	83,317	187,248	150,451
Other income (expense):
Interest income		715	180	1,008	266
Interest expense		(78,908)	(71,498)	(156,562)	(137,525)
Non-cash interest expense		(322)	(8,293)	(601)	(18,596)
Amortization of deferred financing fees		(4,626)	(4,278)	(9,170)	(8,516)
Loss from extinguishment of debt, net			(8,236)		(10,187)
Other income (expense), net		15,507	1,384	(67,461)	19,774
Total other expense		(67,634)	(90,741)	(232,786)	(154,784)
Income (loss) before provision for income taxes		30,529	(7,424)	(45,538)	(4,333)
Provision for income taxes		(2,224)	(2,043)	(5,187)	(3,728)
Net income (loss)		$ 28,305	$ (9,467)	$ (50,725)	$ (8,061)
Basic		$ 0.22	$ (0.07)	$ (0.39)	$ (0.06)
Diluted		$ 0.22	$ (0.07)	$ (0.39)	$ (0.06)
Weighted average number of common shares
Basic		128,809	128,950	129,021	128,756
Diluted		129,948	128,950	129,021	128,756

[1] Includes non-cash compensation of $8,089 and $6,090 for the three months ended June 30, 2015 and 2014, respectively, and $14,972 and $10,631 for the six months ended June 30, 2015 and 2014, respectively.