Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (50,725)	$ (8,061)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, accretion, and amortization	334,230	305,447
Non-cash interest expense	601	18,596
Deferred income tax expense	192	37
Non-cash asset impairment and decommission costs	7,902	5,263
Non-cash compensation expense	15,201	10,814
Amortization of deferred financing fees	9,170	8,516
Loss from extinguishment of debt, net		10,187
Non-cash earnout adjustments	2,201	1,647
Loss on remeasurement of U.S. dollar denominated intercompany loan	68,292
Gain on foreign currency swap contract		(17,891)
Other non-cash items reflected in the Statements of Operations	(168)	110
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts, net	6,461	(656)
Prepaid and other assets	(24,148)	(16,397)
Accounts payable and accrued expenses	(54)	(1,773)
Accrued interest	(564)	7,331
Other liabilities	6,941	11,775
Net cash provided by operating activities	375,532	334,945
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions	(323,082)	(967,474)
Capital expenditures	(118,392)	(72,151)
Proceeds from foreign currency swap contract		17,891
Other investing activities	4,864	(4,916)
Net cash used in investing activities	(436,610)	(1,026,650)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under Revolving Credit Facility	450,000	275,000
Repayments under Revolving Credit Facility	(535,000)	(390,000)
Repayment of Term Loans	(15,000)	(295,500)
Proceeds from Term Loans, net of fees	489,899	1,483,450
Payments on settlement of convertible debt		(121,289)
Payments for settlement of common stock warrants	(150,874)	(276,227)
Payment for earn-outs	(3,052)	(14,439)
Repurchase and retirement of common stock	(150,023)
Other financing activities	7,834	(2,000)
Net cash provided by financing activities	93,784	658,995
Effect of exchange rate changes on cash and cash equivalents	(2,303)	18,250
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	30,403	(14,460)
CASH AND CASH EQUIVALENTS:
Beginning of period	39,443	122,112
End of period	69,846	107,652
Cash paid during the period for:
Interest	157,153	129,691
Income taxes	5,667	4,354
SUPPLEMENTAL CASH FLOW INFORMATION OF NON-CASH ACTIVITIES:
Assets acquired through capital leases	$ 1,976	947
Issuance of stock for settlement of convertible debt and warrants, net of hedges		$ 283