Employee Benefits, Textuals (Details) (USD $)	9 Months Ended		12 Months Ended		9 Months Ended											3 Months Ended				9 Months Ended				12 Months Ended						9 Months Ended			9 Months Ended				9 Months Ended			9 Months Ended							9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Mar. 23, 2012	Dec. 31, 2010	Sep. 30, 2011 Minimum [Member] Hired Prior to 1/1/2004 [Member] Defined Contribution Plan [Member] Salaried And Certain Hourly Employee [Member] Fixed Rate Contributions [Member]	Sep. 30, 2011 Minimum [Member] Hired Prior to 1/1/2004 [Member] Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions [Member]	Sep. 30, 2011 Hired Prior to 1/1/2004 [Member] Defined Contribution Plan [Member] Salaried And Certain Hourly Employee [Member] Fixed Rate Contributions [Member] Maximum [Member]	Sep. 30, 2011 Hired Prior to 1/1/2004 [Member] Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions [Member] Maximum [Member]	Sep. 30, 2011 Hired on or after 1/1/2004 [Member] Defined Contribution Plan [Member] Salaried And Certain Hourly Employee [Member] Fixed Rate Contributions [Member]	Sep. 30, 2011 Hired on or after 1/1/2004 [Member] Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions [Member]	Sep. 30, 2011 Starting July 2010 until July 2015 [Member] Multiemployer Pension Plans [Member] Newark Ohio and Spokane Washington Facilities [Member]	Sep. 30, 2011 Starting July 2015 [Member] Multiemployer Pension Plans [Member] Newark Ohio and Spokane Washington Facilities [Member]	Sep. 30, 2011 Veba [Member]	Sep. 30, 2011 Veba [Member] Annual Cash Flows up to Twenty Million Dollars [Member] Variable Cash Contribution [Member]	Sep. 30, 2011 Veba [Member] Annual Cash Flows in Excess of Twenty Million Dollars [Member] Variable Cash Contribution [Member]	Mar. 31, 2011 Veba [Member] Additional Amount [Member] Variable Cash Contribution [Member]	Dec. 31, 2010 Veba [Member] Variable Cash Contribution [Member]	Sep. 30, 2011 Veba [Member] Variable Cash Contribution [Member] Maximum [Member]	Sep. 30, 2011 Veba [Member] Maximum [Member]	Sep. 30, 2011 Union VEBA [Member] trustrees		Sep. 30, 2010 Union VEBA [Member]		Mar. 23, 2012 Union VEBA [Member]	Sep. 30, 2011 Union VEBA [Member] Company Appointed [Member] trustrees	Sep. 30, 2011 Union VEBA [Member] USW Appointed [Member] trustrees	Dec. 31, 2010 Union VEBA [Member] Variable Cash Contribution [Member]	Dec. 31, 2010 Salaried VEBA [Member] Variable Cash Contribution [Member]	Sep. 30, 2011 Minimum [Member] Multiemployer Pension Plans [Member]	Sep. 30, 2011 Multiemployer Pension Plans [Member]	Sep. 30, 2011 Multiemployer Pension Plans [Member] Florence Alabama Facility [Member]	Sep. 30, 2011 Multiemployer Pension Plans [Member] Maximum [Member]	Sep. 30, 2011 Defined Benefit Plan [Member] Salaried Employee [Member] London Ontario Facility [Member]	Dec. 31, 2010 Defined Benefit Plan [Member] Salaried Employee [Member] London Ontario Facility [Member]	Sep. 30, 2011 Minimum [Member] Defined Contribution Plan [Member] Salaried And Certain Hourly Employee [Member]	Sep. 30, 2011 Minimum [Member] Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member]	Sep. 30, 2011 Minimum [Member] Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions [Member]	Sep. 30, 2011 Defined Contribution Plan [Member] Salaried And Certain Hourly Employee [Member] Concurrent Match [Member]	Sep. 30, 2011 Defined Contribution Plan [Member] Salaried And Certain Hourly Employee [Member] Maximum [Member]	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] productionfacilities	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions [Member] productionfacilities	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions [Member] Maximum [Member]	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Concurrent Match [Member] productionfacilities	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Fixed Rate Contributions and Concurrent Match [Member] productionfacilities	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] No Contributions Required [Member] productionfacilities	Sep. 30, 2011 Defined Contribution Plan [Member] Hourly Bargaining Unit Employees [Member] Maximum [Member]	Sep. 30, 2011 Additional Paid-in Capital [Member]	Sep. 30, 2010 Additional Paid-in Capital [Member]	Sep. 30, 2011 Common Stock Owned by Union VEBA Subject to Transfer Restriction		Sep. 30, 2010 Common Stock Owned by Union VEBA Subject to Transfer Restriction
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Monthly contributions per hour worked by each bargaining unit employee											$ 1.25	$ 1.50																		$ 1	$ 1.25
Estimated annual contribution to pension and other postretirement benefit plans																													2,000,000			4,000,000			4,000,000	1,000,000			6,000,000							3,000,000
Number of production facilities																																								7	3		1	2	1
Defined contribution plan annual employer contribution																																					800					2,400
Defined contribution plan employer contribution percentage					2.00%	2.00%	10.00%	10.00%	2.00%	2.00%																												4.00%
Portion of plan assets invested in equity securities																																		62.00%
Asset mix target allocation in equity																																	60.00%
Portion of plan assets invested in debt securities																																		36.00%
Asset mix target allocation in debt																																	36.00%
Number of trustees																				4					2	2
Administrative expense obligation																			300,000
Administrative expense obligation percentage													50.00%
Postretirement medical plan contribution obligation percentage														10.00%	20.00%
Cash flow in determining VEBA obligation													20,000,000
Postretirement medical plan contribution obligation																	2,100,000	20,000,000									1,800,000	300,000
Postretirement medical plan contribution obligation paid																100,000
Liquidity requirement													50,000,000
Postretirement medical plan common stock ownership percentage																				11.00%
Common stock, shares outstanding	19,291,721			19,214,451																2,202,495
Stock transfer restriction annual period																								12 months
Unrestricted Union VEBA shares allowed to be sold in any twelve-month period			1,321,485
Common stock sold by Union VEBA	1,321,485	1,321,485
Increase in Union VEBA assets																				65,500,000	[1]	52,000,000	[1]
Reduction in Common stock owned by Union VEBA	(40,800,000)																																														(9,100,000)	(700,000)	(31,700,000)	[2]	(31,700,000)	[2]
Increase in Additional paid in capital	(40,800,000)																																														(9,100,000)	(700,000)	(31,700,000)	[2]	(31,700,000)	[2]
Decrease in Deferred tax assets																																															$ (24,700,000)	$ (19,600,000)
Weighted average price per share sold by Union VEBA																				$ 49.58		$ 39.38
Reorganization Value Per Share	$ 24.02	$ 24.02

[1] At a weighted-average price of $49.58 and $39.38 per share realized by the Union VEBA for the nine month periods ended September 30, 2011 and September 30, 2010, respectively.

[2] At $24.02 per share reorganization value.