Commitments and Contingencies (tables)

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies Disclosure Abstract

Schedule Of Environmental Loss Contingencies By Site Text Block

			Current Liabilities						Non-Current Liabilities
			June 30,		June 30,		Dec. 31,		June 30,		June 30,		Dec. 31,
Thousands			2012		2011		2011		2012		2011		2011
Portland Harbor site:
	Gasco/Siltronic Sediments	$	2,340	$	995	$	1,614	$	43,066	$	29,866	$	35,797
	Other Portland Harbor		1,286		2,619		1,893		3,409		5,426		7,066
Gasco site			12,606		9,140		14,092		10,769		9,099		8,900
Siltronic upland site			467		836		887		620		71		128
Central Service Center site			100		5		-		436		543		495
Front Street site			866		-		1,697		646		823		-
Other sites			-		-		-		117		132		120
	Total	$	17,665	$	13,595	$	20,183	$	59,063	$	45,960	$	52,506