Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended									2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 U.S. Federal Tax Jurisdiction [Member]	Dec. 31, 2011 State and Local Jurisdictions [Member]	Dec. 31, 2011 Accuride Canada Inc. [Member]	Dec. 31, 2011 Canada [Member]	Dec. 31, 2011 Mexico [Member]	Dec. 31, 2010 Mexico [Member]	Feb. 26, 2010 Predecessor [Member]	Dec. 31, 2010 Successor [Member]	Dec. 31, 2012 Successor [Member]	Dec. 31, 2011 Successor [Member]
Earnings from continuing operations before income taxes [Abstract]
United States																		$ 49,214,000	$ (140,719,000)	$ (181,955,000)	$ (16,214,000)
Foreign																		(1,062,000)	5,028,000	2,862,000	9,625,000
Total																		48,152,000	(135,691,000)	(179,093,000)	(6,589,000)
Current [Abstract]
Federal																		0	(600,000)	313,000	215,000
State																		0	292,000	400,000	(9,000)
Foreign																		0	626,000	1,432,000	2,907,000
Total																		0	318,000	2,146,000	3,113,000
Deferred [Abstract]
Federal																		(12,233,000)	(5,701,000)	(43,749,000)	(5,035,000)
State																		(2,084,000)	(2,700,000)	(19,000)	(5,878,000)
Foreign																		0	430,000	(2,232,000)	(195,000)
Valuation allowance																		12,386,000	5,446,000	42,197,000	15,756,000
Total																		(1,931,000)	(2,525,000)	(3,803,000)	4,648,000
Total provision (benefit)	(4,487,000)	(106,000)	1,339,000	1,597,000	(2,663,000)	10,032,000	(107,000)	499,000	1,657,000	7,761,000								(1,931,000)	(2,207,000)	(1,657,000)	7,761,000
Reconciliation of the U.S. statutory tax rate to effective tax rate [Abstract]
Statutory tax rate (in hundredths)																		35.00%	(35.00%)	(35.00%)	(35.00%)
State and local income taxes (in hundredths)																		(4.30%)	(2.00%)	0.20%	(89.30%)
Incremental foreign tax (benefit) (in hundredths)																		0.80%	(0.60%)	(0.10%)	(10.60%)
Change in valuation allowance (in hundredths)																		25.30%	4.10%	23.60%	239.10%
Foreign subsidiary dividend and undistributed earnings (in hundredths)																		0.00%	0.00%	12.30%	0.00%
Change in liability for unrecognized tax benefits (in hundredths)																		0.00%	(0.40%)	(0.50%)	14.30%
Reorganization costs (in hundredths)																		(61.90%)	28.30%	0.00%	0.00%
Inducement expense (in hundredths)																		0.00%	21.10%	0.00%	0.00%
Mark to market valuation of convertible debt (in hundredths)																		0.00%	(19.50%)	0.00%	0.00%
Other items-net (in hundredths)																		1.10%	2.40%	(1.40%)	(0.007%)
Effective tax rate (in hundredths)																		(4.00%)	(1.60%)	(0.90%)	117.80%
Deferred tax assets [Abstract]
Postretirement and postemployment benefits	27,208,000				27,138,000				27,208,000	27,138,000
Accrued liabilities, reserves and other	10,219,000				3,241,000				10,219,000	3,241,000
Debt transaction and refinancing costs	2,498,000				1,985,000				2,498,000	1,985,000
Inventories	2,340,000				1,531,000				2,340,000	1,531,000
Accrued compensation and benefits	3,008,000				4,854,000				3,008,000	4,854,000
Worker's compensation	1,999,000				1,923,000				1,999,000	1,923,000
Pension benefit	18,108,000				21,361,000				18,108,000	21,361,000
State income taxes	1,442,000				1,442,000				1,442,000	1,442,000
Tax credits	3,728,000				1,335,000				3,728,000	1,335,000
Indirect effect of unrecognized tax benefits	2,243,000				1,333,000				2,243,000	1,333,000
Loss carryforwards	74,357,000				63,364,000				74,357,000	63,364,000
Valuation allowance	(101,248,000)				(55,355,000)				(101,248,000)	(55,355,000)
Total deferred tax assets	45,902,000				74,152,000				45,902,000	74,152,000
Deferred tax liabilities [Abstract]
Asset basis and depreciation	(9,475,000)				(21,041,000)				(9,475,000)	(21,041,000)
Unrealized foreign exchange gain	(45,805,000)				(66,437,000)				(45,805,000)	(66,437,000)
Intangible assets	(55,280,000)				(87,478,000)				(55,280,000)	(87,478,000)
Total deferred tax liabilities	(9,378,000)				(13,326,000)				(9,378,000)	(13,326,000)
Net deferred tax liability	4,591,000				(7,675,000)				4,591,000	(7,675,000)
Current deferred tax asset	5,052,000				7,675,000				5,052,000	7,675,000
Long-term deferred income tax asset (liability)-net	(19,021,000)				(21,001,000)				(19,021,000)	(21,001,000)
Federal loss carryforwards					178,400,000					178,400,000
State loss carryforwards					246,000,000					246,000,000
Number of cumulative years of net losses										3 years
Valuation allowance increase									45,900,000	22,200,000
Valuation allowance change in amount attributable to continuing operations									42,200,000
Valuation allowance increased attributable to OCI									3,700,000	6,400,000
Cumulative retained earnings	(321,570,000)				(143,563,000)				(321,570,000)	(143,563,000)				11,900,000
Deferred tax liabilities for undistributed earnings of foreign subsidiary																0	1,900,000
Reconciliation of unrecognized tax benefits [Roll Forward]
Balance at beginning of the period																		7,060,000	7,060,000	7,033,000	6,184,000
Additions based on tax positions related to the current year																		0	489,000	4,000	161,000
Additions for tax positions of prior years																		0	93,000		818,000
Reductions for tax positions of prior years																		0	0	(800,000)	0
Removal of penalties and interest																		0	0	0	0
Reductions due to lapse of statute of limitations																		0	(1,458,000)	(1,597,000)	(130,000)
Settlements with taxing authorities																		0	0	0	0
Balance at end of period																		7,060,000	6,184,000	4,640,000	7,033,000
Unrecognized tax benefits that would, if recognized, impact the effective income tax rate					3,400,000					3,400,000
Unrecognized tax benefits that would, if recognized, impact the other accounts					1,300,000					1,300,000
Unrecognized tax benefits, accrued interest					3,500,000					3,500,000	3,100,000
Unrecognized tax benefits, accrued penalties					1,400,000					1,400,000	1,400,000
Open tax years												2009-2011	2007-2010		2004-2011	2006-2011
Significant increases or decreases in its remaining unrecognized tax benefits within the next twelve months	$ 0								$ 0