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Multiemployer Plans (Tables)

12 Months Ended

Dec. 31, 2012

Multiemployer Plans

Schedule of the entity's contributions to different pension funds

		EIN/Pension Plan		Pension Protection Act Zone Status				FIP/RP Status		Surcharge		Collective Bargaining Agreement		Contributions of the Company
Pension Fund Name		Number		2012		2011		Pending/Implemented		Imposed		Expiration Date		2012			2011			2010
So Cal Pipetrades Trust Funds		51-6108443/001		Green as of January 1, 2011		Green as of January 1, 2010		No		No		6/30/2014		5,298			2,931			1,394
Laborers Pension Trust Fund for Northern California		94-6277608/001		Yellow as of June 1, 2012		Yellow as of June 1, 2011		Yes		No		6/30/2015		$	4,816		$	3,501		$	1,237
Construction Laborers Pension Trust for Southern California		43-6159056/001		Green as of January 1, 2011		Green as of January 1, 2010		No		No		6/30/2015		2,952			2,373			1,694
Central Pension Fund of the International Union of Operating Engineers and Participating Employers		36-6052390/001		Green as of February 1, 2011		Green as of February 1, 2010		No		No		5/31/2014		2,206			1,797			946
Laborers International Union of North America National (Industrial) Pension Fund		52-6074345/001		Red as of March 31, 2011		Red as of March 31, 2011		Yes		Yes (1)		5/31/2014		1,995			1,740			826
Pipeline Industry Benefit Fund		73-6146433/001		Green as of January 1, 2011		Green as of January 1, 2010		No		No		5/31/2014		1,747			1,793			1,110
Boilermaker-Blacksmith National Pension Trust		48-6168020/001		Yellow as of January 1, 2011		Yellow as of January 1, 2010		Yes		No		9/30/2014		1,502			1,035			469
Northern California Pipe Trades Pension Plan		94-3190386/002		Green as of January 1, 2011		Green as of January 1, 2010		No		No		4/30/2014		1,638			1,741			283
								Contributions for significant plans						$	22,154		$	16,911		$	7,959
								Contributions to other multiemployer plans						7,949			7,271			4,631
								Total contributions made						$	30,103		$	24,182		$	12,590

(1) Temporary surcharge of 5% of total contributions imposed during the period June 1, 2010 through December 31, 2010. Effective January 1, 2011, the surcharge was increased to 10% of total contributions. Under the Preservation of Access to Care for Medicare Beneficiaries and Pension Relief Act of 2010, the plan adopted to amortize the fund’s 2008 investment losses over a 29 year period (rather than 15 years) and the 2008 investment losses will be recognized for funding purposes over a 10 year smoothing period (rather than 5 years). During this period, benefits cannot be increased.

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- Definition

Tabular disclosure of the quantitative and qualitative information related to multiemployer plans in which the employer participates. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-URI http://asc.fasb.org/subtopic&trid=2235144

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