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Goodwill and other intangible assets

6 Months Ended

Jun. 30, 2011

Goodwill and other intangible assets [Abstract]

11.	Goodwill and other intangible assets

The changes in the carrying amount of goodwill were as follows:

	Balance		Goodwill		Balance
	as of		Acquired		as of
Six Months Ended	January 1,		During		June 30,
June 30, 2011		2011*	the Year**			2011*
	(In thousands)
Electric	$	-	$	-	$	-
Natural gas distribution		345,736		-		345,736
Construction services		102,870		298		103,168
Pipeline and energy services		9,737		-		9,737
Natural gas and oil production		-		-		-
Construction materials and contracting		176,290		-		176,290
Other		-		-		-
Total	$	634,633	$	298	$	634,931
Balance is presented net of accumulated impairment of $12.3 million at the pipeline and energy services segment, which occurred in prior periods. *Includes a purchase price adjustment that was not material related to an acquisition in a prior period.

Six Months Ended June 30, 2010	Balance as of January 1, 2010*		Goodwill Acquired During the Year**		Balance as of June 30, 2010*
	(In thousands)
Electric	$	-	$	-	$	-
Natural gas distribution		345,736		-		345,736
Construction services		100,127		2,764		102,891
Pipeline and energy services		7,857		1,880		9,737
Natural gas and oil production		-		-		-
Construction materials and contracting		175,743		547		176,290
Other		-		-		-
Total	$	629,463	$	5,191	$	634,654
Balance is presented net of accumulated impairment of $12.3 million at the pipeline and energy services segment, which occurred in prior periods. *Includes purchase price adjustments that were not material related to acquisitions in a prior period.

	Balance		Goodwill		Balance
	as of		Acquired		as of
Year Ended	January 1,		During the		December 31,
December 31, 2010		2010*	Year**			2010*
	(In thousands)
Electric	$	-	$	-	$	-
Natural gas distribution		345,736		-		345,736
Construction services		100,127		2,743		102,870
Pipeline and energy services		7,857		1,880		9,737
Natural gas and oil production		-		-		-
Construction materials and contracting		175,743		547		176,290
Other		-		-		-
Total	$	629,463	$	5,170	$	634,633
Balance is presented net of accumulated impairment of $12.3 million at the pipeline and energy services segment, which occurred in prior periods. *Includes purchase price adjustments that were not material related to acquisitions in a prior period.

Other amortizable intangible assets were as follows:

	June 30, 2011			June 30, 2010			December 31, 2010
	(In thousands)
Customer relationships	$	21,702		$	24,942		$	24,942
Accumulated amortization		(9,395	)		(10,688	)		(11,625	)
		12,307			14,254			13,317
Noncompete agreements		7,685			9,405			9,405
Accumulated amortization		(5,062	)		(6,033	)		(6,425	)
		2,623			3,372			2,980
Other		12,899			12,063			13,217
Accumulated amortization		(4,492	)		(3,490	)		(4,243	)
		8,407			8,573			8,974
Total	$	23,337		$	26,199		$	25,271

Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2011, was $1.0 million and $1.9 million, respectively. Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2010, was $1.1 million and $2.1 million, respectively. Estimated amortization expense for amortizable intangible assets is $4.0 million in 2011, $3.9 million in 2012, $3.7 million in 2013, $3.4 million in 2014, $2.7 million in 2015 and $7.5 million thereafter.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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