Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net sales and operating income by segment [Abstract]
Net sales	$ 184,007	$ 155,264	$ 532,366	$ 498,192
Operating income (loss)	10,044	(725)	28,917	437
Wheels [Member]
Net sales and operating income by segment [Abstract]
Net sales	106,685	87,978	300,058	280,608
Operating income (loss)	11,847	7,973	33,446	25,467
Gunite [Member]
Net sales and operating income by segment [Abstract]
Net sales	42,357	40,751	134,634	131,354
Operating income (loss)	4,149	(150)	14,670	1,396
Brillion Iron Works [Member]
Net sales and operating income by segment [Abstract]
Net sales	34,965	26,535	97,674	86,230
Operating income (loss)	1,680	296	3,444	2,726
Corporate / Other [Member]
Net sales and operating income by segment [Abstract]
Operating income (loss)	(7,632)	(8,844)	(22,643)	(29,152)
Inter-segment sales [Member]
Net sales and operating income by segment [Abstract]
Net sales	$ 3,055	$ 4,395	$ 10,825	$ 13,030