Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Indefinite-lived Intangible Assets by Segment [Table Text Block]

Indefinite-lived Intangible Assets:

(in thousands)	March 31, 2012		December 31, 2011		March 31, 2011
Goodwill1	$	9,900	$	9,900	$	9,900
Use rights and other	393		393		1,319
Total unamortized intangible assets	$	10,293	$	10,293	$	11,219

¹Goodwill for all periods presented primarily relates to our Construction segment.

Schedule of Finite-Lived Intangible Assets by Major Class

Amortized Intangible Assets:

March 31, 2012			Accumulated
(in thousands)	Gross Value		Amortization			Net Value
Permits	$	29,713	$	(8,589	)	$	21,124
Customer lists	2,198		(2,000		)	198
Covenants not to compete	1,588		(1,510		)	78
Other	871		(621		)	250
Total amortized intangible assets	$	34,370	$	(12,720	)	$	21,650

December 31, 2011
(in thousands)
Permits	$	29,713	$	(7,573	)	$	22,140
Customer lists	2,198		(1,942		)	256
Covenants not to compete	1,588		(1,476		)	112
Other	871		(583		)	288
Total amortized intangible assets	$	34,370	$	(11,574	)	$	22,796

March 31, 2011
(in thousands)
Permits	$	29,713	$	(6,468	)	$	23,245
Customer lists	2,198		(1,772		)	426
Covenants not to compete	1,588		(1,364		)	224
Other	871		(470		)	401
Total amortized intangible assets	$	34,370	$	(10,074	)	$	24,296