BUSINESS COMBINATIONS (Tables)

9 Months Ended

Sep. 30, 2012

Acquisitions During 2012 [Member]

Business Acquisition, Pro Forma Combined Information

The following unaudited pro forma combined summary data presents information as if the 2012 acquisitions had been acquired at the beginning of 2011 and assumes that there were no material, non-recurring pro forma adjustments directly attributable to the acquisitions. The pro forma information does not necessarily reflect the actual results that would have occurred had the Company and those two acquisitions been combined during the periods presented, nor is it necessarily indicative of the future results of operations of the combined companies (in thousands).



	For the Three Months Ended		For the Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Pro forma combined revenues	$534,770	$568,427	$1,666,377	$1,477,304
Pro forma combined net income	$12,465	$38,616	$73,799	$93,524

Summary of recognized amounts of identifiable assets acquired and liabilities assumed

The Company expects to finalize the valuation and complete the purchase price allocation as soon as practicable but no later than one year from the acquisition dates. Final determination of the fair value may result in further adjustments to the values presented below (in thousands).



	At Acquisition Dates (As reported at September 30, 2012)
Current assets (i)	$13,964
Property, plant and equipment	35,882
Customer relationships and other intangibles	17,690
Current liabilities	(4,022	)
Other liabilities	(3,388	)
Total identifiable net assets	60,126
Goodwill (ii)	23,574
Total	$83,700

_______________________


(i)	The preliminary fair value of the financial assets acquired includes customer receivables with an aggregate fair value of $7.3 million. Combined gross amounts due were $7.5 million.


(ii)	Goodwill represents the excess of the fair value of the net assets acquired over the purchase price attributed to expected operating and cross selling synergies. The goodwill has been assigned to the Industrial Services segment and will not be deductible for tax purposes.

Acquisitions During 2011 [Member]

Business Acquisition [Line Items]

Summary of recognized amounts of identifiable assets acquired and liabilities assumed

The following table summarizes the recognized amounts of identifiable assets acquired and liabilities assumed (in thousands).



	At Acquisition Dates (As reported at June 30, 2012)			Measurement Period Adjustments			At Acquisition Dates (As Adjusted)
Current assets (i)	$	41,491		$	60		$	41,551
Property, plant and equipment	62,969			—			62,969
Customer relationships and other intangibles	23,371			—			23,371
Other assets	1,671			—			1,671
Current liabilities	(23,403		)	255			(23,148		)
Asset retirement obligations and remedial liabilities	(200		)	—			(200		)
Other liabilities	(2,419		)	—			(2,419		)
Total identifiable net assets	103,480			315			103,795
Goodwill (ii)	38,654			(315		)	38,339
Total	$	142,134		$	—		$	142,134

_______________________


(i)	The fair value of the financial assets acquired includes customer receivables with an aggregate fair value of $21.4 million. Combined gross amounts due were $22.1 million.


(ii)	Goodwill represents the excess of the fair value of the net assets acquired over the purchase price. Goodwill of $13.3 million, $11.1 million and $13.9 million has been assigned to the Oil and Gas Field Services segment, the Technical Services segment, and the Industrial Services segment, respectively, and will not be deductible for tax purposes.

Peak Energy Services Ltd.'s (Peak) [Member]

Business Acquisition [Line Items]

Summary of recognized amounts of identifiable assets acquired and liabilities assumed

During the three months ended June 30, 2012, the Company finalized the purchase accounting for the acquisition of Peak. The following table summarizes the amounts of identifiable assets acquired and liabilities assumed at June 10, 2011 (in thousands).



	At June 10, 2011 (As adjusted)
Current assets (i)	$	45,222
Property, plant and equipment	151,574
Identifiable intangible assets	12,337
Other assets	8,009
Current liabilities	(28,785		)
Asset retirement obligations	(103		)
Other liabilities	(11,341		)
Total identifiable net assets	176,913
Goodwill (ii)	28,220
Total	$	205,133

_______________________


(i)	The fair value of the financial assets acquired includes customer receivables with a fair value of $33.3 million. The gross amount due was $34.7 million.


(ii)	Goodwill, which is attributable to expected operating and cross-selling synergies, will not be deductible for tax purposes. Goodwill of $12.9 million and $15.3 million has been recorded in the Oil and Gas Field Services and Industrial Services segments, respectively.