Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2012

Summary of the changes to accrued liability balance related to restructuring charges

The following table summarizes the changes to our accrued liability balance related to restructuring charges for the years ended December 31, 2011 and 2012 (in thousands):

	Restructuring Charges Accrual
Beginning balance at December 31, 2010	$	—
Additions for costs expensed	11,594
Less non-cash expenses	(1,575		)
Reductions for payments	(8,243		)
Ending balance at December 31, 2011	1,776
Additions for costs expensed	6,636
Less non-cash expenses	(83		)
Reductions for payments	(8,329		)
Ending balance at December 31, 2012	$	—

Schedule of restructuring charges by segment

Restructuring charges by segment are as follows (in thousands):

	North America Contract Operations		International Contract Operations		Aftermarket Services		Fabrication		Other(1)		Total
Costs incurred in 2011	$	53	$	502	$	422	$	1,574	$	9,043	$	11,594
Costs incurred in 2012	968		800		485		902		3,481		6,636
Total costs incurred	$	1,021	$	1,302	$	907	$	2,476	$	12,524	$	18,230

(1) Includes corporate related items

- Definition

Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.

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