Environmental Matters (Tables)

12 Months Ended

Dec. 31, 2013

Environmental Remediation Obligations [Abstract]

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

	Current Liabilities				Non-Current Liabilities
In thousands	2013		2012		2013		2012
Portland Harbor site:
Gasco/Siltronic Sediments	$	1,278	$	2,207	$	37,954	$	36,087
Other Portland Harbor	1,766		1,767		3,478		3,160
Gasco Upland site	11,010		18,722		39,508		5,028
Siltronic Upland site	763		637		406		379
Central Service Center site	85		140		248		396
Front Street site	1,274		993		122		—
Oregon Steel Mills	—		—		179		185
Total	$	16,176	$	24,466	$	81,895	$	45,235

Environmental Regulatory Table [Table Text Block]

In thousands	2013		2012
Cash paid(1)	$	98,817	$	71,124
Total regulatory asset deferral(2)	148,389		121,144