CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss from continuing operations	$ (77,485)		$ (64,286)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, accretion and amortization	176,098		151,569
Non-cash interest expense	34,407		31,006
Deferred income tax expense (benefit)	1,392		(524)
Asset impairment	995		296
Non-cash compensation expense	6,907		5,922
Provision for doubtful accounts	149		55
Amortization of deferred financing fees	6,094		4,400
Loss from extinguishment of debt, net	27,149		1,696
Other items reflected in the Statements of Operations	4,697		575
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts, net	(3,864)		2,607
Prepaid and other assets	(33,568)		(8,316)
Accounts payable and accrued expenses	4,597		(1,697)
Accrued interest	(7,643)		23
Other liabilities	18,238		(437)
Net cash provided by operating activities	148,769		122,889
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions and related earn-outs	(951,391)		(166,044)
Capital expenditures	(48,287)		(55,737)
Other investing activities	(1,176)		1,200
Net cash used in investing activities	(1,000,854)		(220,581)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under Revolving Credit Facility	484,000		250,000
Repayment of Revolving Credit Facility	(200,000)		(270,000)
Proceeds from Mobilitie Bridge Loan, net of fees	395,000
Proceeds from sale of common stock, net of fees	283,879
Repurchase of 2016 Notes and 2019 Notes	(283,828)
Repurchase and retirement of common stock			(150,071)
Repayment of 2011 Term Loan	(2,500)
Proceeds from bankruptcy claim on convertible hedge	4,648
Proceeds from employee stock purchase/stock option plans	13,604		6,346
Payment on extinguishment of debt			(17,038)
Principal payments under capital lease obligations	(648)
Payment of deferred financing fees	(1,233)		(45)
Purchase of noncontrolling interests			(717)
Net cash provided by financing activities	890,232		311,092
Effect of exchange rate changes on cash and cash equivalents	(104)		95
Net cash provided by discontinued operations from operating activities (1)	1,380	[1]
NET INCREASE IN CASH AND CASH EQUIVALENTS	39,423		213,495
CASH AND CASH EQUIVALENTS:
Beginning of period	47,316		64,254
End of period	86,739		277,749
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest	93,920		76,526
Income taxes	2,683		2,291
SUPPLEMENTAL CASH FLOW INFORMATION OF NON-CASH INVESTING & FINANCING ACTIVITIES:
Assets acquired through capital leases	1,791		587
Increase in accounts payable and accrued expenses for capital expenditures	2,793		3,334
Issuance of common stock for acquisition	263,340
2012 Term Loan [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Term Loan, net of fees	197,310
2011 Term Loan [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Term Loan, net of fees			$ 492,617

[1] There was no investing or financing activity related to discontinued operations for the six months ended June 30, 2012