Commitments and Contingencies (tables)

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Environmental Loss Contingencies by Site [Table Text Block]

	Current Liabilities						Non-Current Liabilities
	September 30,		September 30,		December 31,		September 30,		September 30,		December 31,
Thousands	2012		2011		2011		2012		2011		2011
Portland Harbor site:
Gasco/Siltronic Sediments	$	1,748	$	1,490	$	1,614	$	43,628	$	30,604	$	35,797
Other Portland Harbor	1,188		2,174		1,893		3,186		5,122		7,066
Gasco upland site	18,018		8,899		14,092		7,453		7,447		8,900
Siltronic upland site	511		721		887		592		114		128
Central Service Center site	100		5		—		445		530		495
Front Street site	942		—		1,697		452		765		—
Oregon Steel Mills	—		—		—		185		129		120
Total	$	22,507	$	13,289	$	20,183	$	55,941	$	44,711	$	52,506