Acquisitions (Tables)

6 Months Ended

Jun. 30, 2013

Business Combinations [Abstract]

Schedule of Acquisition Capital Expenditures

The following table summarizes the Company’s cash acquisition capital expenditures:

	For the three months ended June 30,				For the six months ended June 30,
	2013		2012		2013		2012
	(in thousands)
Towers and related intangible assets	$	35,111	$	885,880	$	230,864	$	929,595
Ground lease land purchases		11,156		11,082		24,544		16,753
Earnouts		910		3,281		1,311		5,043
Total acquisition capital expenditures	$	47,177	$	900,243	$	256,719	$	951,391