Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following table presents the goodwill balance by reporting segment:

(in thousands)	June 30, 2013		December 31, 2012		June 30, 2012
Construction	$	28,300	$	29,190	$	6,936
Large Project Construction	23,184		24,115		850
Construction Materials	2,114		2,114		2,114
Total goodwill	$	53,598	$	55,419	$	9,900

Schedule of Finite-Lived Intangible Assets by Major Class

Amortized Intangible Assets:

Following is the breakdown of our amortized intangible assets that are included in other noncurrent assets on our condensed consolidated balance sheets:

June 30, 2013			Accumulated
(in thousands)	Gross Value		Amortization			Net Book Value
Permits	$	29,713	$	(11,430	)	$	18,283
Customer lists	4,398		(2,344		)	2,054
Covenants not to compete	1,588		(1,550		)	38
Acquired backlog	7,900		(3,447		)	4,453
Trade name	4,100		(216		)	3,884
Other	871		(797		)	74
Total amortized intangible assets	$	48,570	$	(19,784	)	$	28,786

December 31, 2012
(in thousands)
Permits	$	29,713	$	(10,869	)	$	18,844
Customer lists	4,698		(2,170		)	2,528
Covenants not to compete	1,588		(1,546		)	42
Acquired backlog	8,400		—			8,400
Trade name	4,100		—			4,100
Other	871		(734		)	137
Total amortized intangible assets	$	49,370	$	(15,319	)	$	34,051

June 30, 2012
(in thousands)
Permits	$	29,713	$	(9,494	)	$	20,219
Customer lists	2,198		(2,056		)	142
Covenants not to compete	1,588		(1,536		)	52
Other	871		(658		)	213
Total amortized intangible assets	$	34,370	$	(13,744	)	$	20,626